Home / 112,947.08-155,870.34-62,645

Finding the Fourth Proportional to 112,947.08, 155,870.34 and 62,645

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Solution

The fourth proportional to 112,947.08, 155,870.34 and 62,645 is: 86,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,947.08 : 155,870.34 = 62,645 : x
  2. Step 2: Convert to fraction form
    112,947.08/155,870.34 = 62,645/x
  3. Step 3: Cross multiply
    112,947.08x = 155,870.34 × 62,645
  4. Step 4: Simplify right side
    112,947.08x = 9,764,497,449.30
  5. Step 5: Solve for x
    x = 9,764,497,449.30/112,947.08
  6. Step 6: Final answer
    x = 86,451.97

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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.