Home / 160,387.04-221,187.96-137,719.04

Finding the Fourth Proportional to 160,387.04, 221,187.96 and 137,719.04

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Solution

The fourth proportional to 160,387.04, 221,187.96 and 137,719.04 is: 189,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,387.04 : 221,187.96 = 137,719.04 : x
  2. Step 2: Convert to fraction form
    160,387.04/221,187.96 = 137,719.04/x
  3. Step 3: Cross multiply
    160,387.04x = 221,187.96 × 137,719.04
  4. Step 4: Simplify right side
    160,387.04x = 30,461,793,510.76
  5. Step 5: Solve for x
    x = 30,461,793,510.76/160,387.04
  6. Step 6: Final answer
    x = 189,926.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.