Home / 112,392.72-155,111.84-62,101.44

Finding the Fourth Proportional to 112,392.72, 155,111.84 and 62,101.44

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Solution

The fourth proportional to 112,392.72, 155,111.84 and 62,101.44 is: 85,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,392.72 : 155,111.84 = 62,101.44 : x
  2. Step 2: Convert to fraction form
    112,392.72/155,111.84 = 62,101.44/x
  3. Step 3: Cross multiply
    112,392.72x = 155,111.84 × 62,101.44
  4. Step 4: Simplify right side
    112,392.72x = 9,632,668,625.05
  5. Step 5: Solve for x
    x = 9,632,668,625.05/112,392.72
  6. Step 6: Final answer
    x = 85,705.45

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1.5x scale

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.