Home / 167,128.20-250,886.70-100,643.40

Finding the Fourth Proportional to 167,128.20, 250,886.70 and 100,643.40

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Solution

The fourth proportional to 167,128.20, 250,886.70 and 100,643.40 is: 151,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,128.20 : 250,886.70 = 100,643.40 : x
  2. Step 2: Convert to fraction form
    167,128.20/250,886.70 = 100,643.40/x
  3. Step 3: Cross multiply
    167,128.20x = 250,886.70 × 100,643.40
  4. Step 4: Simplify right side
    167,128.20x = 25,250,090,502.78
  5. Step 5: Solve for x
    x = 25,250,090,502.78/167,128.20
  6. Step 6: Final answer
    x = 151,082.17

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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.