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Finding the Fourth Proportional to 156,325.84, 215,716.88 and 88,348.64

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Solution

The fourth proportional to 156,325.84, 215,716.88 and 88,348.64 is: 121,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,325.84 : 215,716.88 = 88,348.64 : x
  2. Step 2: Convert to fraction form
    156,325.84/215,716.88 = 88,348.64/x
  3. Step 3: Cross multiply
    156,325.84x = 215,716.88 × 88,348.64
  4. Step 4: Simplify right side
    156,325.84x = 19,058,292,973.04
  5. Step 5: Solve for x
    x = 19,058,292,973.04/156,325.84
  6. Step 6: Final answer
    x = 121,913.90

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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.