Home / 109,509.90-164,282.58-42,913.92

Finding the Fourth Proportional to 109,509.90, 164,282.58 and 42,913.92

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Solution

The fourth proportional to 109,509.90, 164,282.58 and 42,913.92 is: 64,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.90 : 164,282.58 = 42,913.92 : x
  2. Step 2: Convert to fraction form
    109,509.90/164,282.58 = 42,913.92/x
  3. Step 3: Cross multiply
    109,509.90x = 164,282.58 × 42,913.92
  4. Step 4: Simplify right side
    109,509.90x = 7,050,009,495.51
  5. Step 5: Solve for x
    x = 7,050,009,495.51/109,509.90
  6. Step 6: Final answer
    x = 64,377.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.