Home / 115,480.89-159,379.45-64,496.76

Finding the Fourth Proportional to 115,480.89, 159,379.45 and 64,496.76

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Solution

The fourth proportional to 115,480.89, 159,379.45 and 64,496.76 is: 89,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,480.89 : 159,379.45 = 64,496.76 : x
  2. Step 2: Convert to fraction form
    115,480.89/159,379.45 = 64,496.76/x
  3. Step 3: Cross multiply
    115,480.89x = 159,379.45 × 64,496.76
  4. Step 4: Simplify right side
    115,480.89x = 10,279,457,376.67
  5. Step 5: Solve for x
    x = 10,279,457,376.67/115,480.89
  6. Step 6: Final answer
    x = 89,014.36

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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.