Home / 112,445.88-155,173.74-62,143.80

Finding the Fourth Proportional to 112,445.88, 155,173.74 and 62,143.80

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Solution

The fourth proportional to 112,445.88, 155,173.74 and 62,143.80 is: 85,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,445.88 : 155,173.74 = 62,143.80 : x
  2. Step 2: Convert to fraction form
    112,445.88/155,173.74 = 62,143.80/x
  3. Step 3: Cross multiply
    112,445.88x = 155,173.74 × 62,143.80
  4. Step 4: Simplify right side
    112,445.88x = 9,643,085,863.81
  5. Step 5: Solve for x
    x = 9,643,085,863.81/112,445.88
  6. Step 6: Final answer
    x = 85,757.57

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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.