Home / 127,338.40-175,263.12-91,472.80

Finding the Fourth Proportional to 127,338.40, 175,263.12 and 91,472.80

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Solution

The fourth proportional to 127,338.40, 175,263.12 and 91,472.80 is: 125,899.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,338.40 : 175,263.12 = 91,472.80 : x
  2. Step 2: Convert to fraction form
    127,338.40/175,263.12 = 91,472.80/x
  3. Step 3: Cross multiply
    127,338.40x = 175,263.12 × 91,472.80
  4. Step 4: Simplify right side
    127,338.40x = 16,031,808,323.14
  5. Step 5: Solve for x
    x = 16,031,808,323.14/127,338.40
  6. Step 6: Final answer
    x = 125,899.24

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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.