Home / 115,436.88-159,303.24-65,134.80

Finding the Fourth Proportional to 115,436.88, 159,303.24 and 65,134.80

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Solution

The fourth proportional to 115,436.88, 159,303.24 and 65,134.80 is: 89,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,436.88 : 159,303.24 = 65,134.80 : x
  2. Step 2: Convert to fraction form
    115,436.88/159,303.24 = 65,134.80/x
  3. Step 3: Cross multiply
    115,436.88x = 159,303.24 × 65,134.80
  4. Step 4: Simplify right side
    115,436.88x = 10,376,184,676.75
  5. Step 5: Solve for x
    x = 10,376,184,676.75/115,436.88
  6. Step 6: Final answer
    x = 89,886.22

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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.