Home / 153,031.26-211,182.94-85,046.08

Finding the Fourth Proportional to 153,031.26, 211,182.94 and 85,046.08

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Solution

The fourth proportional to 153,031.26, 211,182.94 and 85,046.08 is: 117,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,031.26 : 211,182.94 = 85,046.08 : x
  2. Step 2: Convert to fraction form
    153,031.26/211,182.94 = 85,046.08/x
  3. Step 3: Cross multiply
    153,031.26x = 211,182.94 × 85,046.08
  4. Step 4: Simplify right side
    153,031.26x = 17,960,281,209.88
  5. Step 5: Solve for x
    x = 17,960,281,209.88/153,031.26
  6. Step 6: Final answer
    x = 117,363.48

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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.