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Finding the Fourth Proportional to 127,512.96, 176,004.95 and 85,071.39

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Solution

The fourth proportional to 127,512.96, 176,004.95 and 85,071.39 is: 117,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,512.96 : 176,004.95 = 85,071.39 : x
  2. Step 2: Convert to fraction form
    127,512.96/176,004.95 = 85,071.39/x
  3. Step 3: Cross multiply
    127,512.96x = 176,004.95 × 85,071.39
  4. Step 4: Simplify right side
    127,512.96x = 14,972,985,318.02
  5. Step 5: Solve for x
    x = 14,972,985,318.02/127,512.96
  6. Step 6: Final answer
    x = 117,423.24

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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.