Home / 115,849.50-160,003.53-78,058.14

Finding the Fourth Proportional to 115,849.50, 160,003.53 and 78,058.14

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Solution

The fourth proportional to 115,849.50, 160,003.53 and 78,058.14 is: 107,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,849.50 : 160,003.53 = 78,058.14 : x
  2. Step 2: Convert to fraction form
    115,849.50/160,003.53 = 78,058.14/x
  3. Step 3: Cross multiply
    115,849.50x = 160,003.53 × 78,058.14
  4. Step 4: Simplify right side
    115,849.50x = 12,489,577,945.23
  5. Step 5: Solve for x
    x = 12,489,577,945.23/115,849.50
  6. Step 6: Final answer
    x = 107,808.65

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1.5x scale

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.