Home / 131,702.20-198,014.10-128,937.40

Finding the Fourth Proportional to 131,702.20, 198,014.10 and 128,937.40

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Solution

The fourth proportional to 131,702.20, 198,014.10 and 128,937.40 is: 193,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,702.20 : 198,014.10 = 128,937.40 : x
  2. Step 2: Convert to fraction form
    131,702.20/198,014.10 = 128,937.40/x
  3. Step 3: Cross multiply
    131,702.20x = 198,014.10 × 128,937.40
  4. Step 4: Simplify right side
    131,702.20x = 25,531,423,217.34
  5. Step 5: Solve for x
    x = 25,531,423,217.34/131,702.20
  6. Step 6: Final answer
    x = 193,857.23

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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.