Home / 153,876.15-212,348.27-89,361.25

Finding the Fourth Proportional to 153,876.15, 212,348.27 and 89,361.25

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Solution

The fourth proportional to 153,876.15, 212,348.27 and 89,361.25 is: 123,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,876.15 : 212,348.27 = 89,361.25 : x
  2. Step 2: Convert to fraction form
    153,876.15/212,348.27 = 89,361.25/x
  3. Step 3: Cross multiply
    153,876.15x = 212,348.27 × 89,361.25
  4. Step 4: Simplify right side
    153,876.15x = 18,975,706,632.95
  5. Step 5: Solve for x
    x = 18,975,706,632.95/153,876.15
  6. Step 6: Final answer
    x = 123,318.05

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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.