Home / 153,828.80-212,282.51-89,304.02

Finding the Fourth Proportional to 153,828.80, 212,282.51 and 89,304.02

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Solution

The fourth proportional to 153,828.80, 212,282.51 and 89,304.02 is: 123,238.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,828.80 : 212,282.51 = 89,304.02 : x
  2. Step 2: Convert to fraction form
    153,828.80/212,282.51 = 89,304.02/x
  3. Step 3: Cross multiply
    153,828.80x = 212,282.51 × 89,304.02
  4. Step 4: Simplify right side
    153,828.80x = 18,957,681,996.52
  5. Step 5: Solve for x
    x = 18,957,681,996.52/153,828.80
  6. Step 6: Final answer
    x = 123,238.84

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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.