Home / 127,120.38-175,434.45-73,407.66

Finding the Fourth Proportional to 127,120.38, 175,434.45 and 73,407.66

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Solution

The fourth proportional to 127,120.38, 175,434.45 and 73,407.66 is: 101,307.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,120.38 : 175,434.45 = 73,407.66 : x
  2. Step 2: Convert to fraction form
    127,120.38/175,434.45 = 73,407.66/x
  3. Step 3: Cross multiply
    127,120.38x = 175,434.45 × 73,407.66
  4. Step 4: Simplify right side
    127,120.38x = 12,878,232,457.89
  5. Step 5: Solve for x
    x = 12,878,232,457.89/127,120.38
  6. Step 6: Final answer
    x = 101,307.38

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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.