Home / 158,052.21-218,113.20-89,142.54

Finding the Fourth Proportional to 158,052.21, 218,113.20 and 89,142.54

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Solution

The fourth proportional to 158,052.21, 218,113.20 and 89,142.54 is: 123,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,052.21 : 218,113.20 = 89,142.54 : x
  2. Step 2: Convert to fraction form
    158,052.21/218,113.20 = 89,142.54/x
  3. Step 3: Cross multiply
    158,052.21x = 218,113.20 × 89,142.54
  4. Step 4: Simplify right side
    158,052.21x = 19,443,164,655.53
  5. Step 5: Solve for x
    x = 19,443,164,655.53/158,052.21
  6. Step 6: Final answer
    x = 123,017.35

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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.