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Finding the Fourth Proportional to 101,543.20, 152,314.80 and 26,658.40

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Solution

The fourth proportional to 101,543.20, 152,314.80 and 26,658.40 is: 39,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,543.20 : 152,314.80 = 26,658.40 : x
  2. Step 2: Convert to fraction form
    101,543.20/152,314.80 = 26,658.40/x
  3. Step 3: Cross multiply
    101,543.20x = 152,314.80 × 26,658.40
  4. Step 4: Simplify right side
    101,543.20x = 4,060,468,864.32
  5. Step 5: Solve for x
    x = 4,060,468,864.32/101,543.20
  6. Step 6: Final answer
    x = 39,987.60

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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.