Home / 119,679.34-165,117.12-74,341.21

Finding the Fourth Proportional to 119,679.34, 165,117.12 and 74,341.21

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Solution

The fourth proportional to 119,679.34, 165,117.12 and 74,341.21 is: 102,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,679.34 : 165,117.12 = 74,341.21 : x
  2. Step 2: Convert to fraction form
    119,679.34/165,117.12 = 74,341.21/x
  3. Step 3: Cross multiply
    119,679.34x = 165,117.12 × 74,341.21
  4. Step 4: Simplify right side
    119,679.34x = 12,275,006,492.52
  5. Step 5: Solve for x
    x = 12,275,006,492.52/119,679.34
  6. Step 6: Final answer
    x = 102,565.79

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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.