Home / 108,125.74-149,204.64-62,789.32

Finding the Fourth Proportional to 108,125.74, 149,204.64 and 62,789.32

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Solution

The fourth proportional to 108,125.74, 149,204.64 and 62,789.32 is: 86,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,125.74 : 149,204.64 = 62,789.32 : x
  2. Step 2: Convert to fraction form
    108,125.74/149,204.64 = 62,789.32/x
  3. Step 3: Cross multiply
    108,125.74x = 149,204.64 × 62,789.32
  4. Step 4: Simplify right side
    108,125.74x = 9,368,457,886.44
  5. Step 5: Solve for x
    x = 9,368,457,886.44/108,125.74
  6. Step 6: Final answer
    x = 86,644.10

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1.5x scale

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.