Home / 127,078.92-175,369.10-70,490.30

Finding the Fourth Proportional to 127,078.92, 175,369.10 and 70,490.30

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Solution

The fourth proportional to 127,078.92, 175,369.10 and 70,490.30 is: 97,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,078.92 : 175,369.10 = 70,490.30 : x
  2. Step 2: Convert to fraction form
    127,078.92/175,369.10 = 70,490.30/x
  3. Step 3: Cross multiply
    127,078.92x = 175,369.10 × 70,490.30
  4. Step 4: Simplify right side
    127,078.92x = 12,361,819,240.43
  5. Step 5: Solve for x
    x = 12,361,819,240.43/127,078.92
  6. Step 6: Final answer
    x = 97,276.71

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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.