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Finding the Fourth Proportional to 145,902.60, 218,732.40 and 61,727.40

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Solution

The fourth proportional to 145,902.60, 218,732.40 and 61,727.40 is: 92,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,902.60 : 218,732.40 = 61,727.40 : x
  2. Step 2: Convert to fraction form
    145,902.60/218,732.40 = 61,727.40/x
  3. Step 3: Cross multiply
    145,902.60x = 218,732.40 × 61,727.40
  4. Step 4: Simplify right side
    145,902.60x = 13,501,782,347.76
  5. Step 5: Solve for x
    x = 13,501,782,347.76/145,902.60
  6. Step 6: Final answer
    x = 92,539.70

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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.