Home / 127,125.63-175,360.45-79,295.91

Finding the Fourth Proportional to 127,125.63, 175,360.45 and 79,295.91

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Solution

The fourth proportional to 127,125.63, 175,360.45 and 79,295.91 is: 109,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,125.63 : 175,360.45 = 79,295.91 : x
  2. Step 2: Convert to fraction form
    127,125.63/175,360.45 = 79,295.91/x
  3. Step 3: Cross multiply
    127,125.63x = 175,360.45 × 79,295.91
  4. Step 4: Simplify right side
    127,125.63x = 13,905,366,460.76
  5. Step 5: Solve for x
    x = 13,905,366,460.76/127,125.63
  6. Step 6: Final answer
    x = 109,382.87

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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.