Home / 115,261.75-159,055.08-64,279.72

Finding the Fourth Proportional to 115,261.75, 159,055.08 and 64,279.72

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Solution

The fourth proportional to 115,261.75, 159,055.08 and 64,279.72 is: 88,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.75 : 159,055.08 = 64,279.72 : x
  2. Step 2: Convert to fraction form
    115,261.75/159,055.08 = 64,279.72/x
  3. Step 3: Cross multiply
    115,261.75x = 159,055.08 × 64,279.72
  4. Step 4: Simplify right side
    115,261.75x = 10,224,016,006.98
  5. Step 5: Solve for x
    x = 10,224,016,006.98/115,261.75
  6. Step 6: Final answer
    x = 88,702.59

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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.