Home / 136,697,835.94-188,643,013.58-74,818,174.51

Finding the Fourth Proportional to 136,697,835.94, 188,643,013.58 and 74,818,174.51

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Solution

The fourth proportional to 136,697,835.94, 188,643,013.58 and 74,818,174.51 is: 103,249,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,697,835.94 : 188,643,013.58 = 74,818,174.51 : x
  2. Step 2: Convert to fraction form
    136,697,835.94/188,643,013.58 = 74,818,174.51/x
  3. Step 3: Cross multiply
    136,697,835.94x = 188,643,013.58 × 74,818,174.51
  4. Step 4: Simplify right side
    136,697,835.94x = 14,113,925,910,120,742
  5. Step 5: Solve for x
    x = 14,113,925,910,120,742/136,697,835.94
  6. Step 6: Final answer
    x = 103,249,080.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.