Home / 112,812.12-169,030.55-79,461.73

Finding the Fourth Proportional to 112,812.12, 169,030.55 and 79,461.73

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Solution

The fourth proportional to 112,812.12, 169,030.55 and 79,461.73 is: 119,060.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,812.12 : 169,030.55 = 79,461.73 : x
  2. Step 2: Convert to fraction form
    112,812.12/169,030.55 = 79,461.73/x
  3. Step 3: Cross multiply
    112,812.12x = 169,030.55 × 79,461.73
  4. Step 4: Simplify right side
    112,812.12x = 13,431,459,080.70
  5. Step 5: Solve for x
    x = 13,431,459,080.70/112,812.12
  6. Step 6: Final answer
    x = 119,060.43

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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.