Home / 161,690.46-223,139.56-90,070.47

Finding the Fourth Proportional to 161,690.46, 223,139.56 and 90,070.47

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Solution

The fourth proportional to 161,690.46, 223,139.56 and 90,070.47 is: 124,300.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.46 : 223,139.56 = 90,070.47 : x
  2. Step 2: Convert to fraction form
    161,690.46/223,139.56 = 90,070.47/x
  3. Step 3: Cross multiply
    161,690.46x = 223,139.56 × 90,070.47
  4. Step 4: Simplify right side
    161,690.46x = 20,098,284,154.27
  5. Step 5: Solve for x
    x = 20,098,284,154.27/161,690.46
  6. Step 6: Final answer
    x = 124,300.99

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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.