Home / 162,306.81-223,988.36-90,689.85

Finding the Fourth Proportional to 162,306.81, 223,988.36 and 90,689.85

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Solution

The fourth proportional to 162,306.81, 223,988.36 and 90,689.85 is: 125,154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,306.81 : 223,988.36 = 90,689.85 : x
  2. Step 2: Convert to fraction form
    162,306.81/223,988.36 = 90,689.85/x
  3. Step 3: Cross multiply
    162,306.81x = 223,988.36 × 90,689.85
  4. Step 4: Simplify right side
    162,306.81x = 20,313,470,316.70
  5. Step 5: Solve for x
    x = 20,313,470,316.70/162,306.81
  6. Step 6: Final answer
    x = 125,154.76

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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.