Home / 143,132.90-214,526.55-72,976.10

Finding the Fourth Proportional to 143,132.90, 214,526.55 and 72,976.10

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Solution

The fourth proportional to 143,132.90, 214,526.55 and 72,976.10 is: 109,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.90 : 214,526.55 = 72,976.10 : x
  2. Step 2: Convert to fraction form
    143,132.90/214,526.55 = 72,976.10/x
  3. Step 3: Cross multiply
    143,132.90x = 214,526.55 × 72,976.10
  4. Step 4: Simplify right side
    143,132.90x = 15,655,310,965.46
  5. Step 5: Solve for x
    x = 15,655,310,965.46/143,132.90
  6. Step 6: Final answer
    x = 109,376.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.