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Finding the Fourth Proportional to 145,830.60, 218,745.90 and 101,593.80

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Solution

The fourth proportional to 145,830.60, 218,745.90 and 101,593.80 is: 152,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,830.60 : 218,745.90 = 101,593.80 : x
  2. Step 2: Convert to fraction form
    145,830.60/218,745.90 = 101,593.80/x
  3. Step 3: Cross multiply
    145,830.60x = 218,745.90 × 101,593.80
  4. Step 4: Simplify right side
    145,830.60x = 22,223,227,215.42
  5. Step 5: Solve for x
    x = 22,223,227,215.42/145,830.60
  6. Step 6: Final answer
    x = 152,390.70

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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.