Home / 127,445.76-175,901.76-87,240.96

Finding the Fourth Proportional to 127,445.76, 175,901.76 and 87,240.96

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Solution

The fourth proportional to 127,445.76, 175,901.76 and 87,240.96 is: 120,410.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,445.76 : 175,901.76 = 87,240.96 : x
  2. Step 2: Convert to fraction form
    127,445.76/175,901.76 = 87,240.96/x
  3. Step 3: Cross multiply
    127,445.76x = 175,901.76 × 87,240.96
  4. Step 4: Simplify right side
    127,445.76x = 15,345,838,408.09
  5. Step 5: Solve for x
    x = 15,345,838,408.09/127,445.76
  6. Step 6: Final answer
    x = 120,410.74

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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.