Home / 158,164.80-218,265.40-90,179.60

Finding the Fourth Proportional to 158,164.80, 218,265.40 and 90,179.60

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Solution

The fourth proportional to 158,164.80, 218,265.40 and 90,179.60 is: 124,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,164.80 : 218,265.40 = 90,179.60 : x
  2. Step 2: Convert to fraction form
    158,164.80/218,265.40 = 90,179.60/x
  3. Step 3: Cross multiply
    158,164.80x = 218,265.40 × 90,179.60
  4. Step 4: Simplify right side
    158,164.80x = 19,683,086,465.84
  5. Step 5: Solve for x
    x = 19,683,086,465.84/158,164.80
  6. Step 6: Final answer
    x = 124,446.69

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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.