Home / 158,395.10-218,591.26-90,423.14

Finding the Fourth Proportional to 158,395.10, 218,591.26 and 90,423.14

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Solution

The fourth proportional to 158,395.10, 218,591.26 and 90,423.14 is: 124,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,395.10 : 218,591.26 = 90,423.14 : x
  2. Step 2: Convert to fraction form
    158,395.10/218,591.26 = 90,423.14/x
  3. Step 3: Cross multiply
    158,395.10x = 218,591.26 × 90,423.14
  4. Step 4: Simplify right side
    158,395.10x = 19,765,706,786.74
  5. Step 5: Solve for x
    x = 19,765,706,786.74/158,395.10
  6. Step 6: Final answer
    x = 124,787.37

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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.