Home / 158,351.40-218,528.48-90,367.02

Finding the Fourth Proportional to 158,351.40, 218,528.48 and 90,367.02

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Solution

The fourth proportional to 158,351.40, 218,528.48 and 90,367.02 is: 124,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,351.40 : 218,528.48 = 90,367.02 : x
  2. Step 2: Convert to fraction form
    158,351.40/218,528.48 = 90,367.02/x
  3. Step 3: Cross multiply
    158,351.40x = 218,528.48 × 90,367.02
  4. Step 4: Simplify right side
    158,351.40x = 19,747,767,070.89
  5. Step 5: Solve for x
    x = 19,747,767,070.89/158,351.40
  6. Step 6: Final answer
    x = 124,708.51

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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.