Home / 111,720.46-154,152.18-62,663.66

Finding the Fourth Proportional to 111,720.46, 154,152.18 and 62,663.66

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Solution

The fourth proportional to 111,720.46, 154,152.18 and 62,663.66 is: 86,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,720.46 : 154,152.18 = 62,663.66 : x
  2. Step 2: Convert to fraction form
    111,720.46/154,152.18 = 62,663.66/x
  3. Step 3: Cross multiply
    111,720.46x = 154,152.18 × 62,663.66
  4. Step 4: Simplify right side
    111,720.46x = 9,659,739,795.78
  5. Step 5: Solve for x
    x = 9,659,739,795.78/111,720.46
  6. Step 6: Final answer
    x = 86,463.48

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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.