Home / 153,244.48-211,476-86,175.04

Finding the Fourth Proportional to 153,244.48, 211,476 and 86,175.04

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Solution

The fourth proportional to 153,244.48, 211,476 and 86,175.04 is: 118,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,244.48 : 211,476 = 86,175.04 : x
  2. Step 2: Convert to fraction form
    153,244.48/211,476 = 86,175.04/x
  3. Step 3: Cross multiply
    153,244.48x = 211,476 × 86,175.04
  4. Step 4: Simplify right side
    153,244.48x = 18,223,952,759.04
  5. Step 5: Solve for x
    x = 18,223,952,759.04/153,244.48
  6. Step 6: Final answer
    x = 118,920.78

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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.