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Finding the Fourth Proportional to 156,915, 235,359.15 and 62,119.40

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Solution

The fourth proportional to 156,915, 235,359.15 and 62,119.40 is: 93,173.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915 : 235,359.15 = 62,119.40 : x
  2. Step 2: Convert to fraction form
    156,915/235,359.15 = 62,119.40/x
  3. Step 3: Cross multiply
    156,915x = 235,359.15 × 62,119.40
  4. Step 4: Simplify right side
    156,915x = 14,620,368,005.71
  5. Step 5: Solve for x
    x = 14,620,368,005.71/156,915
  6. Step 6: Final answer
    x = 93,173.81

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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.