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Finding the Fourth Proportional to 72,159.08, 108,192.76 and 63,292.21

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Solution

The fourth proportional to 72,159.08, 108,192.76 and 63,292.21 is: 94,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,159.08 : 108,192.76 = 63,292.21 : x
  2. Step 2: Convert to fraction form
    72,159.08/108,192.76 = 63,292.21/x
  3. Step 3: Cross multiply
    72,159.08x = 108,192.76 × 63,292.21
  4. Step 4: Simplify right side
    72,159.08x = 6,847,758,813.71
  5. Step 5: Solve for x
    x = 6,847,758,813.71/72,159.08
  6. Step 6: Final answer
    x = 94,898.10

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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.