Home / 111,400.26-153,713.09-62,980.06

Finding the Fourth Proportional to 111,400.26, 153,713.09 and 62,980.06

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Solution

The fourth proportional to 111,400.26, 153,713.09 and 62,980.06 is: 86,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,400.26 : 153,713.09 = 62,980.06 : x
  2. Step 2: Convert to fraction form
    111,400.26/153,713.09 = 62,980.06/x
  3. Step 3: Cross multiply
    111,400.26x = 153,713.09 × 62,980.06
  4. Step 4: Simplify right side
    111,400.26x = 9,680,859,630.99
  5. Step 5: Solve for x
    x = 9,680,859,630.99/111,400.26
  6. Step 6: Final answer
    x = 86,901.59

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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.