Home / 113,581.20-170,389.80-38,708.40

Finding the Fourth Proportional to 113,581.20, 170,389.80 and 38,708.40

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Solution

The fourth proportional to 113,581.20, 170,389.80 and 38,708.40 is: 58,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,581.20 : 170,389.80 = 38,708.40 : x
  2. Step 2: Convert to fraction form
    113,581.20/170,389.80 = 38,708.40/x
  3. Step 3: Cross multiply
    113,581.20x = 170,389.80 × 38,708.40
  4. Step 4: Simplify right side
    113,581.20x = 6,595,516,534.32
  5. Step 5: Solve for x
    x = 6,595,516,534.32/113,581.20
  6. Step 6: Final answer
    x = 58,068.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.