Home / 136,001.40-204,002.10-128,743.80

Finding the Fourth Proportional to 136,001.40, 204,002.10 and 128,743.80

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Solution

The fourth proportional to 136,001.40, 204,002.10 and 128,743.80 is: 193,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,001.40 : 204,002.10 = 128,743.80 : x
  2. Step 2: Convert to fraction form
    136,001.40/204,002.10 = 128,743.80/x
  3. Step 3: Cross multiply
    136,001.40x = 204,002.10 × 128,743.80
  4. Step 4: Simplify right side
    136,001.40x = 26,264,005,561.98
  5. Step 5: Solve for x
    x = 26,264,005,561.98/136,001.40
  6. Step 6: Final answer
    x = 193,115.70

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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.