Home / 112,712.75-155,542.48-61,029.60

Finding the Fourth Proportional to 112,712.75, 155,542.48 and 61,029.60

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Solution

The fourth proportional to 112,712.75, 155,542.48 and 61,029.60 is: 84,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,712.75 : 155,542.48 = 61,029.60 : x
  2. Step 2: Convert to fraction form
    112,712.75/155,542.48 = 61,029.60/x
  3. Step 3: Cross multiply
    112,712.75x = 155,542.48 × 61,029.60
  4. Step 4: Simplify right side
    112,712.75x = 9,492,695,337.41
  5. Step 5: Solve for x
    x = 9,492,695,337.41/112,712.75
  6. Step 6: Final answer
    x = 84,220.24

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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.