Home / 118,115.51-162,995.84-64,401.57

Finding the Fourth Proportional to 118,115.51, 162,995.84 and 64,401.57

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Solution

The fourth proportional to 118,115.51, 162,995.84 and 64,401.57 is: 88,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,115.51 : 162,995.84 = 64,401.57 : x
  2. Step 2: Convert to fraction form
    118,115.51/162,995.84 = 64,401.57/x
  3. Step 3: Cross multiply
    118,115.51x = 162,995.84 × 64,401.57
  4. Step 4: Simplify right side
    118,115.51x = 10,497,187,677.46
  5. Step 5: Solve for x
    x = 10,497,187,677.46/118,115.51
  6. Step 6: Final answer
    x = 88,872.22

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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.