Home / 137,143.10-205,527.80-66,060.56

Finding the Fourth Proportional to 137,143.10, 205,527.80 and 66,060.56

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Solution

The fourth proportional to 137,143.10, 205,527.80 and 66,060.56 is: 99,000.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,143.10 : 205,527.80 = 66,060.56 : x
  2. Step 2: Convert to fraction form
    137,143.10/205,527.80 = 66,060.56/x
  3. Step 3: Cross multiply
    137,143.10x = 205,527.80 × 66,060.56
  4. Step 4: Simplify right side
    137,143.10x = 13,577,281,476.40
  5. Step 5: Solve for x
    x = 13,577,281,476.40/137,143.10
  6. Step 6: Final answer
    x = 99,000.84

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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.