Home / 158,236.64-218,361.12-90,275.61

Finding the Fourth Proportional to 158,236.64, 218,361.12 and 90,275.61

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Solution

The fourth proportional to 158,236.64, 218,361.12 and 90,275.61 is: 124,577.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,236.64 : 218,361.12 = 90,275.61 : x
  2. Step 2: Convert to fraction form
    158,236.64/218,361.12 = 90,275.61/x
  3. Step 3: Cross multiply
    158,236.64x = 218,361.12 × 90,275.61
  4. Step 4: Simplify right side
    158,236.64x = 19,712,683,308.28
  5. Step 5: Solve for x
    x = 19,712,683,308.28/158,236.64
  6. Step 6: Final answer
    x = 124,577.24

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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.