Home / 181,685.80-272,528.70-142,276.60

Finding the Fourth Proportional to 181,685.80, 272,528.70 and 142,276.60

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Solution

The fourth proportional to 181,685.80, 272,528.70 and 142,276.60 is: 213,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,685.80 : 272,528.70 = 142,276.60 : x
  2. Step 2: Convert to fraction form
    181,685.80/272,528.70 = 142,276.60/x
  3. Step 3: Cross multiply
    181,685.80x = 272,528.70 × 142,276.60
  4. Step 4: Simplify right side
    181,685.80x = 38,774,456,838.42
  5. Step 5: Solve for x
    x = 38,774,456,838.42/181,685.80
  6. Step 6: Final answer
    x = 213,414.90

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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.