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Finding the Fourth Proportional to 155,962.60, 234,024.90 and 72,856.60

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Solution

The fourth proportional to 155,962.60, 234,024.90 and 72,856.60 is: 109,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,962.60 : 234,024.90 = 72,856.60 : x
  2. Step 2: Convert to fraction form
    155,962.60/234,024.90 = 72,856.60/x
  3. Step 3: Cross multiply
    155,962.60x = 234,024.90 × 72,856.60
  4. Step 4: Simplify right side
    155,962.60x = 17,050,258,529.34
  5. Step 5: Solve for x
    x = 17,050,258,529.34/155,962.60
  6. Step 6: Final answer
    x = 109,322.74

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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.