Home / 106,267.95-159,428.05-31,387.70

Finding the Fourth Proportional to 106,267.95, 159,428.05 and 31,387.70

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Solution

The fourth proportional to 106,267.95, 159,428.05 and 31,387.70 is: 47,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,267.95 : 159,428.05 = 31,387.70 : x
  2. Step 2: Convert to fraction form
    106,267.95/159,428.05 = 31,387.70/x
  3. Step 3: Cross multiply
    106,267.95x = 159,428.05 × 31,387.70
  4. Step 4: Simplify right side
    106,267.95x = 5,004,080,125.09
  5. Step 5: Solve for x
    x = 5,004,080,125.09/106,267.95
  6. Step 6: Final answer
    x = 47,089.27

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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.