Home / 121,319.20-181,946.40-37,079.20

Finding the Fourth Proportional to 121,319.20, 181,946.40 and 37,079.20

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Solution

The fourth proportional to 121,319.20, 181,946.40 and 37,079.20 is: 55,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,319.20 : 181,946.40 = 37,079.20 : x
  2. Step 2: Convert to fraction form
    121,319.20/181,946.40 = 37,079.20/x
  3. Step 3: Cross multiply
    121,319.20x = 181,946.40 × 37,079.20
  4. Step 4: Simplify right side
    121,319.20x = 6,746,426,954.88
  5. Step 5: Solve for x
    x = 6,746,426,954.88/121,319.20
  6. Step 6: Final answer
    x = 55,608.90

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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.