Home / 99,663.16-137,457.30-63,856.66

Finding the Fourth Proportional to 99,663.16, 137,457.30 and 63,856.66

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Solution

The fourth proportional to 99,663.16, 137,457.30 and 63,856.66 is: 88,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663.16 : 137,457.30 = 63,856.66 : x
  2. Step 2: Convert to fraction form
    99,663.16/137,457.30 = 63,856.66/x
  3. Step 3: Cross multiply
    99,663.16x = 137,457.30 × 63,856.66
  4. Step 4: Simplify right side
    99,663.16x = 8,777,564,070.62
  5. Step 5: Solve for x
    x = 8,777,564,070.62/99,663.16
  6. Step 6: Final answer
    x = 88,072.30

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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.