Home / 181,680.80-272,521.20-142,271.60

Finding the Fourth Proportional to 181,680.80, 272,521.20 and 142,271.60

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Solution

The fourth proportional to 181,680.80, 272,521.20 and 142,271.60 is: 213,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,680.80 : 272,521.20 = 142,271.60 : x
  2. Step 2: Convert to fraction form
    181,680.80/272,521.20 = 142,271.60/x
  3. Step 3: Cross multiply
    181,680.80x = 272,521.20 × 142,271.60
  4. Step 4: Simplify right side
    181,680.80x = 38,772,027,157.92
  5. Step 5: Solve for x
    x = 38,772,027,157.92/181,680.80
  6. Step 6: Final answer
    x = 213,407.40

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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.