Home / 127,229.12-175,581.67-70,640.50

Finding the Fourth Proportional to 127,229.12, 175,581.67 and 70,640.50

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Solution

The fourth proportional to 127,229.12, 175,581.67 and 70,640.50 is: 97,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,229.12 : 175,581.67 = 70,640.50 : x
  2. Step 2: Convert to fraction form
    127,229.12/175,581.67 = 70,640.50/x
  3. Step 3: Cross multiply
    127,229.12x = 175,581.67 × 70,640.50
  4. Step 4: Simplify right side
    127,229.12x = 12,403,176,959.64
  5. Step 5: Solve for x
    x = 12,403,176,959.64/127,229.12
  6. Step 6: Final answer
    x = 97,486.94

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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.