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Finding the Fourth Proportional to 145,903.60, 218,839.20 and 119,562.40

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Solution

The fourth proportional to 145,903.60, 218,839.20 and 119,562.40 is: 179,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,903.60 : 218,839.20 = 119,562.40 : x
  2. Step 2: Convert to fraction form
    145,903.60/218,839.20 = 119,562.40/x
  3. Step 3: Cross multiply
    145,903.60x = 218,839.20 × 119,562.40
  4. Step 4: Simplify right side
    145,903.60x = 26,164,939,966.08
  5. Step 5: Solve for x
    x = 26,164,939,966.08/145,903.60
  6. Step 6: Final answer
    x = 179,330.32

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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.