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Finding the Fourth Proportional to 72,152.34, 107,700.13 and 63,630.38

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Solution

The fourth proportional to 72,152.34, 107,700.13 and 63,630.38 is: 94,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,152.34 : 107,700.13 = 63,630.38 : x
  2. Step 2: Convert to fraction form
    72,152.34/107,700.13 = 63,630.38/x
  3. Step 3: Cross multiply
    72,152.34x = 107,700.13 × 63,630.38
  4. Step 4: Simplify right side
    72,152.34x = 6,853,000,197.95
  5. Step 5: Solve for x
    x = 6,853,000,197.95/72,152.34
  6. Step 6: Final answer
    x = 94,979.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.