Home / 150,387.72-207,521.24-86,713.20

Finding the Fourth Proportional to 150,387.72, 207,521.24 and 86,713.20

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Solution

The fourth proportional to 150,387.72, 207,521.24 and 86,713.20 is: 119,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,387.72 : 207,521.24 = 86,713.20 : x
  2. Step 2: Convert to fraction form
    150,387.72/207,521.24 = 86,713.20/x
  3. Step 3: Cross multiply
    150,387.72x = 207,521.24 × 86,713.20
  4. Step 4: Simplify right side
    150,387.72x = 17,994,830,788.37
  5. Step 5: Solve for x
    x = 17,994,830,788.37/150,387.72
  6. Step 6: Final answer
    x = 119,656.25

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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.