Home / 158,380.12-218,504.42-97,931.40

Finding the Fourth Proportional to 158,380.12, 218,504.42 and 97,931.40

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Solution

The fourth proportional to 158,380.12, 218,504.42 and 97,931.40 is: 135,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,380.12 : 218,504.42 = 97,931.40 : x
  2. Step 2: Convert to fraction form
    158,380.12/218,504.42 = 97,931.40/x
  3. Step 3: Cross multiply
    158,380.12x = 218,504.42 × 97,931.40
  4. Step 4: Simplify right side
    158,380.12x = 21,398,443,756.79
  5. Step 5: Solve for x
    x = 21,398,443,756.79/158,380.12
  6. Step 6: Final answer
    x = 135,108.14

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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.