Home / 161,895.87-223,423.20-90,275.91

Finding the Fourth Proportional to 161,895.87, 223,423.20 and 90,275.91

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Solution

The fourth proportional to 161,895.87, 223,423.20 and 90,275.91 is: 124,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,895.87 : 223,423.20 = 90,275.91 : x
  2. Step 2: Convert to fraction form
    161,895.87/223,423.20 = 90,275.91/x
  3. Step 3: Cross multiply
    161,895.87x = 223,423.20 × 90,275.91
  4. Step 4: Simplify right side
    161,895.87x = 20,169,732,695.11
  5. Step 5: Solve for x
    x = 20,169,732,695.11/161,895.87
  6. Step 6: Final answer
    x = 124,584.60

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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.