Home / 82,885.35-124,328.03-71,610.15

Finding the Fourth Proportional to 82,885.35, 124,328.03 and 71,610.15

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Solution

The fourth proportional to 82,885.35, 124,328.03 and 71,610.15 is: 107,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,885.35 : 124,328.03 = 71,610.15 : x
  2. Step 2: Convert to fraction form
    82,885.35/124,328.03 = 71,610.15/x
  3. Step 3: Cross multiply
    82,885.35x = 124,328.03 × 71,610.15
  4. Step 4: Simplify right side
    82,885.35x = 8,903,148,519.45
  5. Step 5: Solve for x
    x = 8,903,148,519.45/82,885.35
  6. Step 6: Final answer
    x = 107,415.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.