Home / 127,691.48-176,212.64-70,329.66

Finding the Fourth Proportional to 127,691.48, 176,212.64 and 70,329.66

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Solution

The fourth proportional to 127,691.48, 176,212.64 and 70,329.66 is: 97,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,691.48 : 176,212.64 = 70,329.66 : x
  2. Step 2: Convert to fraction form
    127,691.48/176,212.64 = 70,329.66/x
  3. Step 3: Cross multiply
    127,691.48x = 176,212.64 × 70,329.66
  4. Step 4: Simplify right side
    127,691.48x = 12,392,974,707.25
  5. Step 5: Solve for x
    x = 12,392,974,707.25/127,691.48
  6. Step 6: Final answer
    x = 97,054.04

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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.