Home / 153,116.31-211,310.08-85,148.49

Finding the Fourth Proportional to 153,116.31, 211,310.08 and 85,148.49

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Solution

The fourth proportional to 153,116.31, 211,310.08 and 85,148.49 is: 117,510.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,116.31 : 211,310.08 = 85,148.49 : x
  2. Step 2: Convert to fraction form
    153,116.31/211,310.08 = 85,148.49/x
  3. Step 3: Cross multiply
    153,116.31x = 211,310.08 × 85,148.49
  4. Step 4: Simplify right side
    153,116.31x = 17,992,734,020.91
  5. Step 5: Solve for x
    x = 17,992,734,020.91/153,116.31
  6. Step 6: Final answer
    x = 117,510.24

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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.