Home / 161,690.37-223,139.61-90,070.44

Finding the Fourth Proportional to 161,690.37, 223,139.61 and 90,070.44

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Solution

The fourth proportional to 161,690.37, 223,139.61 and 90,070.44 is: 124,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.37 : 223,139.61 = 90,070.44 : x
  2. Step 2: Convert to fraction form
    161,690.37/223,139.61 = 90,070.44/x
  3. Step 3: Cross multiply
    161,690.37x = 223,139.61 × 90,070.44
  4. Step 4: Simplify right side
    161,690.37x = 20,098,282,854.13
  5. Step 5: Solve for x
    x = 20,098,282,854.13/161,690.37
  6. Step 6: Final answer
    x = 124,301.05

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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.