Home / 112,242.60-154,895.64-61,255.72

Finding the Fourth Proportional to 112,242.60, 154,895.64 and 61,255.72

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Solution

The fourth proportional to 112,242.60, 154,895.64 and 61,255.72 is: 84,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,242.60 : 154,895.64 = 61,255.72 : x
  2. Step 2: Convert to fraction form
    112,242.60/154,895.64 = 61,255.72/x
  3. Step 3: Cross multiply
    112,242.60x = 154,895.64 × 61,255.72
  4. Step 4: Simplify right side
    112,242.60x = 9,488,243,953.06
  5. Step 5: Solve for x
    x = 9,488,243,953.06/112,242.60
  6. Step 6: Final answer
    x = 84,533.36

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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.