Home / 115,337.64-172,923.43-70,872.53

Finding the Fourth Proportional to 115,337.64, 172,923.43 and 70,872.53

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Solution

The fourth proportional to 115,337.64, 172,923.43 and 70,872.53 is: 106,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,337.64 : 172,923.43 = 70,872.53 : x
  2. Step 2: Convert to fraction form
    115,337.64/172,923.43 = 70,872.53/x
  3. Step 3: Cross multiply
    115,337.64x = 172,923.43 × 70,872.53
  4. Step 4: Simplify right side
    115,337.64x = 12,255,519,938.58
  5. Step 5: Solve for x
    x = 12,255,519,938.58/115,337.64
  6. Step 6: Final answer
    x = 106,257.77

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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.