Home / 129,019.79-193,431.20-72,923.24

Finding the Fourth Proportional to 129,019.79, 193,431.20 and 72,923.24

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Solution

The fourth proportional to 129,019.79, 193,431.20 and 72,923.24 is: 109,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,019.79 : 193,431.20 = 72,923.24 : x
  2. Step 2: Convert to fraction form
    129,019.79/193,431.20 = 72,923.24/x
  3. Step 3: Cross multiply
    129,019.79x = 193,431.20 × 72,923.24
  4. Step 4: Simplify right side
    129,019.79x = 14,105,628,489.32
  5. Step 5: Solve for x
    x = 14,105,628,489.32/129,019.79
  6. Step 6: Final answer
    x = 109,329.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.