Home / 143,981.55-215,970.30-65,095.65

Finding the Fourth Proportional to 143,981.55, 215,970.30 and 65,095.65

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Solution

The fourth proportional to 143,981.55, 215,970.30 and 65,095.65 is: 97,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981.55 : 215,970.30 = 65,095.65 : x
  2. Step 2: Convert to fraction form
    143,981.55/215,970.30 = 65,095.65/x
  3. Step 3: Cross multiply
    143,981.55x = 215,970.30 × 65,095.65
  4. Step 4: Simplify right side
    143,981.55x = 14,058,727,059.20
  5. Step 5: Solve for x
    x = 14,058,727,059.20/143,981.55
  6. Step 6: Final answer
    x = 97,642.56

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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.