Home / 133,020.16-199,538.88-39,518.08

Finding the Fourth Proportional to 133,020.16, 199,538.88 and 39,518.08

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Solution

The fourth proportional to 133,020.16, 199,538.88 and 39,518.08 is: 59,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020.16 : 199,538.88 = 39,518.08 : x
  2. Step 2: Convert to fraction form
    133,020.16/199,538.88 = 39,518.08/x
  3. Step 3: Cross multiply
    133,020.16x = 199,538.88 × 39,518.08
  4. Step 4: Simplify right side
    133,020.16x = 7,885,393,422.95
  5. Step 5: Solve for x
    x = 7,885,393,422.95/133,020.16
  6. Step 6: Final answer
    x = 59,279.69

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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.