Home / 153,636.62-212,065.42-89,122.17

Finding the Fourth Proportional to 153,636.62, 212,065.42 and 89,122.17

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Solution

The fourth proportional to 153,636.62, 212,065.42 and 89,122.17 is: 123,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,636.62 : 212,065.42 = 89,122.17 : x
  2. Step 2: Convert to fraction form
    153,636.62/212,065.42 = 89,122.17/x
  3. Step 3: Cross multiply
    153,636.62x = 212,065.42 × 89,122.17
  4. Step 4: Simplify right side
    153,636.62x = 18,899,730,901.25
  5. Step 5: Solve for x
    x = 18,899,730,901.25/153,636.62
  6. Step 6: Final answer
    x = 123,015.79

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1.5x scale

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.