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Finding the Fourth Proportional to 115,255.72, 159,125.52 and 88,347.52

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Solution

The fourth proportional to 115,255.72, 159,125.52 and 88,347.52 is: 121,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,255.72 : 159,125.52 = 88,347.52 : x
  2. Step 2: Convert to fraction form
    115,255.72/159,125.52 = 88,347.52/x
  3. Step 3: Cross multiply
    115,255.72x = 159,125.52 × 88,347.52
  4. Step 4: Simplify right side
    115,255.72x = 14,058,345,060.71
  5. Step 5: Solve for x
    x = 14,058,345,060.71/115,255.72
  6. Step 6: Final answer
    x = 121,975.25

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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.