Home / 123,892.20-170,971.44-67,303.62

Finding the Fourth Proportional to 123,892.20, 170,971.44 and 67,303.62

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Solution

The fourth proportional to 123,892.20, 170,971.44 and 67,303.62 is: 92,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,892.20 : 170,971.44 = 67,303.62 : x
  2. Step 2: Convert to fraction form
    123,892.20/170,971.44 = 67,303.62/x
  3. Step 3: Cross multiply
    123,892.20x = 170,971.44 × 67,303.62
  4. Step 4: Simplify right side
    123,892.20x = 11,506,996,828.61
  5. Step 5: Solve for x
    x = 11,506,996,828.61/123,892.20
  6. Step 6: Final answer
    x = 92,879.11

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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.