Home / 112,723.50-155,563.32-62,422.50

Finding the Fourth Proportional to 112,723.50, 155,563.32 and 62,422.50

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Solution

The fourth proportional to 112,723.50, 155,563.32 and 62,422.50 is: 86,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,723.50 : 155,563.32 = 62,422.50 : x
  2. Step 2: Convert to fraction form
    112,723.50/155,563.32 = 62,422.50/x
  3. Step 3: Cross multiply
    112,723.50x = 155,563.32 × 62,422.50
  4. Step 4: Simplify right side
    112,723.50x = 9,710,651,342.70
  5. Step 5: Solve for x
    x = 9,710,651,342.70/112,723.50
  6. Step 6: Final answer
    x = 86,145.76

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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.