Home / 153,251.26-211,487.79-85,271.11

Finding the Fourth Proportional to 153,251.26, 211,487.79 and 85,271.11

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Solution

The fourth proportional to 153,251.26, 211,487.79 and 85,271.11 is: 117,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,251.26 : 211,487.79 = 85,271.11 : x
  2. Step 2: Convert to fraction form
    153,251.26/211,487.79 = 85,271.11/x
  3. Step 3: Cross multiply
    153,251.26x = 211,487.79 × 85,271.11
  4. Step 4: Simplify right side
    153,251.26x = 18,033,798,604.75
  5. Step 5: Solve for x
    x = 18,033,798,604.75/153,251.26
  6. Step 6: Final answer
    x = 117,674.72

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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.