Home / 102,369.20-153,553.80-52,432.70

Finding the Fourth Proportional to 102,369.20, 153,553.80 and 52,432.70

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Solution

The fourth proportional to 102,369.20, 153,553.80 and 52,432.70 is: 78,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,369.20 : 153,553.80 = 52,432.70 : x
  2. Step 2: Convert to fraction form
    102,369.20/153,553.80 = 52,432.70/x
  3. Step 3: Cross multiply
    102,369.20x = 153,553.80 × 52,432.70
  4. Step 4: Simplify right side
    102,369.20x = 8,051,240,329.26
  5. Step 5: Solve for x
    x = 8,051,240,329.26/102,369.20
  6. Step 6: Final answer
    x = 78,649.05

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1.5x scale

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.