Home / 161,690.28-223,139.49-90,070.35

Finding the Fourth Proportional to 161,690.28, 223,139.49 and 90,070.35

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Solution

The fourth proportional to 161,690.28, 223,139.49 and 90,070.35 is: 124,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.28 : 223,139.49 = 90,070.35 : x
  2. Step 2: Convert to fraction form
    161,690.28/223,139.49 = 90,070.35/x
  3. Step 3: Cross multiply
    161,690.28x = 223,139.49 × 90,070.35
  4. Step 4: Simplify right side
    161,690.28x = 20,098,251,963.12
  5. Step 5: Solve for x
    x = 20,098,251,963.12/161,690.28
  6. Step 6: Final answer
    x = 124,300.93

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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.