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Finding the Fourth Proportional to 142,337.01, 214,454.19 and 128,844.45

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Solution

The fourth proportional to 142,337.01, 214,454.19 and 128,844.45 is: 194,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,337.01 : 214,454.19 = 128,844.45 : x
  2. Step 2: Convert to fraction form
    142,337.01/214,454.19 = 128,844.45/x
  3. Step 3: Cross multiply
    142,337.01x = 214,454.19 × 128,844.45
  4. Step 4: Simplify right side
    142,337.01x = 27,631,232,160.75
  5. Step 5: Solve for x
    x = 27,631,232,160.75/142,337.01
  6. Step 6: Final answer
    x = 194,125.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.