Home / 153,251.76-211,488.48-85,271.61

Finding the Fourth Proportional to 153,251.76, 211,488.48 and 85,271.61

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Solution

The fourth proportional to 153,251.76, 211,488.48 and 85,271.61 is: 117,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,251.76 : 211,488.48 = 85,271.61 : x
  2. Step 2: Convert to fraction form
    153,251.76/211,488.48 = 85,271.61/x
  3. Step 3: Cross multiply
    153,251.76x = 211,488.48 × 85,271.61
  4. Step 4: Simplify right side
    153,251.76x = 18,033,963,186.05
  5. Step 5: Solve for x
    x = 18,033,963,186.05/153,251.76
  6. Step 6: Final answer
    x = 117,675.41

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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.