Home / 143,892.51-198,697.04-90,269.70

Finding the Fourth Proportional to 143,892.51, 198,697.04 and 90,269.70

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Solution

The fourth proportional to 143,892.51, 198,697.04 and 90,269.70 is: 124,650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,892.51 : 198,697.04 = 90,269.70 : x
  2. Step 2: Convert to fraction form
    143,892.51/198,697.04 = 90,269.70/x
  3. Step 3: Cross multiply
    143,892.51x = 198,697.04 × 90,269.70
  4. Step 4: Simplify right side
    143,892.51x = 17,936,321,740.34
  5. Step 5: Solve for x
    x = 17,936,321,740.34/143,892.51
  6. Step 6: Final answer
    x = 124,650.84

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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.