Home / 113,455.20-170,200.80-38,582.40

Finding the Fourth Proportional to 113,455.20, 170,200.80 and 38,582.40

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Solution

The fourth proportional to 113,455.20, 170,200.80 and 38,582.40 is: 57,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,455.20 : 170,200.80 = 38,582.40 : x
  2. Step 2: Convert to fraction form
    113,455.20/170,200.80 = 38,582.40/x
  3. Step 3: Cross multiply
    113,455.20x = 170,200.80 × 38,582.40
  4. Step 4: Simplify right side
    113,455.20x = 6,566,755,345.92
  5. Step 5: Solve for x
    x = 6,566,755,345.92/113,455.20
  6. Step 6: Final answer
    x = 57,879.72

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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.