Home / 112,371.28-155,069.40-62,069.20

Finding the Fourth Proportional to 112,371.28, 155,069.40 and 62,069.20

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Solution

The fourth proportional to 112,371.28, 155,069.40 and 62,069.20 is: 85,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,371.28 : 155,069.40 = 62,069.20 : x
  2. Step 2: Convert to fraction form
    112,371.28/155,069.40 = 62,069.20/x
  3. Step 3: Cross multiply
    112,371.28x = 155,069.40 × 62,069.20
  4. Step 4: Simplify right side
    112,371.28x = 9,625,033,602.48
  5. Step 5: Solve for x
    x = 9,625,033,602.48/112,371.28
  6. Step 6: Final answer
    x = 85,653.86

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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.