Home / 115,650,112.64-173,419,364-67,140,178.16

Finding the Fourth Proportional to 115,650,112.64, 173,419,364 and 67,140,178.16

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Solution

The fourth proportional to 115,650,112.64, 173,419,364 and 67,140,178.16 is: 100,677,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,650,112.64 : 173,419,364 = 67,140,178.16 : x
  2. Step 2: Convert to fraction form
    115,650,112.64/173,419,364 = 67,140,178.16/x
  3. Step 3: Cross multiply
    115,650,112.64x = 173,419,364 × 67,140,178.16
  4. Step 4: Simplify right side
    115,650,112.64x = 11,643,406,995,353,890
  5. Step 5: Solve for x
    x = 11,643,406,995,353,890/115,650,112.64
  6. Step 6: Final answer
    x = 100,677,869.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.