Home / 161,690.04-223,139.14-90,070.04

Finding the Fourth Proportional to 161,690.04, 223,139.14 and 90,070.04

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Solution

The fourth proportional to 161,690.04, 223,139.14 and 90,070.04 is: 124,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.04 : 223,139.14 = 90,070.04 : x
  2. Step 2: Convert to fraction form
    161,690.04/223,139.14 = 90,070.04/x
  3. Step 3: Cross multiply
    161,690.04x = 223,139.14 × 90,070.04
  4. Step 4: Simplify right side
    161,690.04x = 20,098,151,598.04
  5. Step 5: Solve for x
    x = 20,098,151,598.04/161,690.04
  6. Step 6: Final answer
    x = 124,300.49

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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.