Home / 108,139.32-149,230.80-62,842.92

Finding the Fourth Proportional to 108,139.32, 149,230.80 and 62,842.92

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Solution

The fourth proportional to 108,139.32, 149,230.80 and 62,842.92 is: 86,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,139.32 : 149,230.80 = 62,842.92 : x
  2. Step 2: Convert to fraction form
    108,139.32/149,230.80 = 62,842.92/x
  3. Step 3: Cross multiply
    108,139.32x = 149,230.80 × 62,842.92
  4. Step 4: Simplify right side
    108,139.32x = 9,378,099,225.94
  5. Step 5: Solve for x
    x = 9,378,099,225.94/108,139.32
  6. Step 6: Final answer
    x = 86,722.38

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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.