Home / 161,699.76-223,151.36-90,084.15

Finding the Fourth Proportional to 161,699.76, 223,151.36 and 90,084.15

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Solution

The fourth proportional to 161,699.76, 223,151.36 and 90,084.15 is: 124,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,699.76 : 223,151.36 = 90,084.15 : x
  2. Step 2: Convert to fraction form
    161,699.76/223,151.36 = 90,084.15/x
  3. Step 3: Cross multiply
    161,699.76x = 223,151.36 × 90,084.15
  4. Step 4: Simplify right side
    161,699.76x = 20,102,400,136.52
  5. Step 5: Solve for x
    x = 20,102,400,136.52/161,699.76
  6. Step 6: Final answer
    x = 124,319.29

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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.