Home / 112,378.24-155,079.38-61,391.18

Finding the Fourth Proportional to 112,378.24, 155,079.38 and 61,391.18

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Solution

The fourth proportional to 112,378.24, 155,079.38 and 61,391.18 is: 84,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,378.24 : 155,079.38 = 61,391.18 : x
  2. Step 2: Convert to fraction form
    112,378.24/155,079.38 = 61,391.18/x
  3. Step 3: Cross multiply
    112,378.24x = 155,079.38 × 61,391.18
  4. Step 4: Simplify right side
    112,378.24x = 9,520,506,327.72
  5. Step 5: Solve for x
    x = 9,520,506,327.72/112,378.24
  6. Step 6: Final answer
    x = 84,718.41

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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.