Home / 153,143.26-211,306.73-89,468.75

Finding the Fourth Proportional to 153,143.26, 211,306.73 and 89,468.75

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Solution

The fourth proportional to 153,143.26, 211,306.73 and 89,468.75 is: 123,448.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,143.26 : 211,306.73 = 89,468.75 : x
  2. Step 2: Convert to fraction form
    153,143.26/211,306.73 = 89,468.75/x
  3. Step 3: Cross multiply
    153,143.26x = 211,306.73 × 89,468.75
  4. Step 4: Simplify right side
    153,143.26x = 18,905,349,080.61
  5. Step 5: Solve for x
    x = 18,905,349,080.61/153,143.26
  6. Step 6: Final answer
    x = 123,448.79

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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.