Home / 115,385.60-159,222.48-64,393.76

Finding the Fourth Proportional to 115,385.60, 159,222.48 and 64,393.76

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Solution

The fourth proportional to 115,385.60, 159,222.48 and 64,393.76 is: 88,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,385.60 : 159,222.48 = 64,393.76 : x
  2. Step 2: Convert to fraction form
    115,385.60/159,222.48 = 64,393.76/x
  3. Step 3: Cross multiply
    115,385.60x = 159,222.48 × 64,393.76
  4. Step 4: Simplify right side
    115,385.60x = 10,252,934,163.72
  5. Step 5: Solve for x
    x = 10,252,934,163.72/115,385.60
  6. Step 6: Final answer
    x = 88,858.00

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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.