Home / 266,633.08-399,970.27-89,140.76

Finding the Fourth Proportional to 266,633.08, 399,970.27 and 89,140.76

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Solution

The fourth proportional to 266,633.08, 399,970.27 and 89,140.76 is: 133,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,633.08 : 399,970.27 = 89,140.76 : x
  2. Step 2: Convert to fraction form
    266,633.08/399,970.27 = 89,140.76/x
  3. Step 3: Cross multiply
    266,633.08x = 399,970.27 × 89,140.76
  4. Step 4: Simplify right side
    266,633.08x = 35,653,653,845.21
  5. Step 5: Solve for x
    x = 35,653,653,845.21/266,633.08
  6. Step 6: Final answer
    x = 133,718.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.