Home / 119,407.76-164,875.22-91,768.68

Finding the Fourth Proportional to 119,407.76, 164,875.22 and 91,768.68

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Solution

The fourth proportional to 119,407.76, 164,875.22 and 91,768.68 is: 126,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,407.76 : 164,875.22 = 91,768.68 : x
  2. Step 2: Convert to fraction form
    119,407.76/164,875.22 = 91,768.68/x
  3. Step 3: Cross multiply
    119,407.76x = 164,875.22 × 91,768.68
  4. Step 4: Simplify right side
    119,407.76x = 15,130,381,304.11
  5. Step 5: Solve for x
    x = 15,130,381,304.11/119,407.76
  6. Step 6: Final answer
    x = 126,711.88

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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.