Home / 111,250.95-166,701.38-86,012.12

Finding the Fourth Proportional to 111,250.95, 166,701.38 and 86,012.12

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Solution

The fourth proportional to 111,250.95, 166,701.38 and 86,012.12 is: 128,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,250.95 : 166,701.38 = 86,012.12 : x
  2. Step 2: Convert to fraction form
    111,250.95/166,701.38 = 86,012.12/x
  3. Step 3: Cross multiply
    111,250.95x = 166,701.38 × 86,012.12
  4. Step 4: Simplify right side
    111,250.95x = 14,338,337,837.16
  5. Step 5: Solve for x
    x = 14,338,337,837.16/111,250.95
  6. Step 6: Final answer
    x = 128,882.84

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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.