Home / 112,572.20-155,349.95-62,271.20

Finding the Fourth Proportional to 112,572.20, 155,349.95 and 62,271.20

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Solution

The fourth proportional to 112,572.20, 155,349.95 and 62,271.20 is: 85,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,572.20 : 155,349.95 = 62,271.20 : x
  2. Step 2: Convert to fraction form
    112,572.20/155,349.95 = 62,271.20/x
  3. Step 3: Cross multiply
    112,572.20x = 155,349.95 × 62,271.20
  4. Step 4: Simplify right side
    112,572.20x = 9,673,826,718.33
  5. Step 5: Solve for x
    x = 9,673,826,718.33/112,572.20
  6. Step 6: Final answer
    x = 85,934.42

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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.