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Finding the Fourth Proportional to 145,701.60, 218,412.96 and 56,925.60

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Solution

The fourth proportional to 145,701.60, 218,412.96 and 56,925.60 is: 85,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,701.60 : 218,412.96 = 56,925.60 : x
  2. Step 2: Convert to fraction form
    145,701.60/218,412.96 = 56,925.60/x
  3. Step 3: Cross multiply
    145,701.60x = 218,412.96 × 56,925.60
  4. Step 4: Simplify right side
    145,701.60x = 12,433,288,795.78
  5. Step 5: Solve for x
    x = 12,433,288,795.78/145,701.60
  6. Step 6: Final answer
    x = 85,333.92

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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.