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Finding the Fourth Proportional to 115,335.60, 159,164.28 and 67,617.20

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Solution

The fourth proportional to 115,335.60, 159,164.28 and 67,617.20 is: 93,312.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,335.60 : 159,164.28 = 67,617.20 : x
  2. Step 2: Convert to fraction form
    115,335.60/159,164.28 = 67,617.20/x
  3. Step 3: Cross multiply
    115,335.60x = 159,164.28 × 67,617.20
  4. Step 4: Simplify right side
    115,335.60x = 10,762,242,953.62
  5. Step 5: Solve for x
    x = 10,762,242,953.62/115,335.60
  6. Step 6: Final answer
    x = 93,312.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.