Home / 152,912.98-229,147.68-86,210.80

Finding the Fourth Proportional to 152,912.98, 229,147.68 and 86,210.80

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Solution

The fourth proportional to 152,912.98, 229,147.68 and 86,210.80 is: 129,191.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,912.98 : 229,147.68 = 86,210.80 : x
  2. Step 2: Convert to fraction form
    152,912.98/229,147.68 = 86,210.80/x
  3. Step 3: Cross multiply
    152,912.98x = 229,147.68 × 86,210.80
  4. Step 4: Simplify right side
    152,912.98x = 19,755,004,810.94
  5. Step 5: Solve for x
    x = 19,755,004,810.94/152,912.98
  6. Step 6: Final answer
    x = 129,191.16

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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.