Home / 112,711.75-155,541.10-61,028.60

Finding the Fourth Proportional to 112,711.75, 155,541.10 and 61,028.60

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Solution

The fourth proportional to 112,711.75, 155,541.10 and 61,028.60 is: 84,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,711.75 : 155,541.10 = 61,028.60 : x
  2. Step 2: Convert to fraction form
    112,711.75/155,541.10 = 61,028.60/x
  3. Step 3: Cross multiply
    112,711.75x = 155,541.10 × 61,028.60
  4. Step 4: Simplify right side
    112,711.75x = 9,492,455,575.46
  5. Step 5: Solve for x
    x = 9,492,455,575.46/112,711.75
  6. Step 6: Final answer
    x = 84,218.86

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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.