Home / 108,126.74-149,206.02-62,790.32

Finding the Fourth Proportional to 108,126.74, 149,206.02 and 62,790.32

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Solution

The fourth proportional to 108,126.74, 149,206.02 and 62,790.32 is: 86,645.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,126.74 : 149,206.02 = 62,790.32 : x
  2. Step 2: Convert to fraction form
    108,126.74/149,206.02 = 62,790.32/x
  3. Step 3: Cross multiply
    108,126.74x = 149,206.02 × 62,790.32
  4. Step 4: Simplify right side
    108,126.74x = 9,368,693,741.73
  5. Step 5: Solve for x
    x = 9,368,693,741.73/108,126.74
  6. Step 6: Final answer
    x = 86,645.48

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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.