Home / 239,141.32-330,017.12-131,715.04

Finding the Fourth Proportional to 239,141.32, 330,017.12 and 131,715.04

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Solution

The fourth proportional to 239,141.32, 330,017.12 and 131,715.04 is: 181,767.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,141.32 : 330,017.12 = 131,715.04 : x
  2. Step 2: Convert to fraction form
    239,141.32/330,017.12 = 131,715.04/x
  3. Step 3: Cross multiply
    239,141.32x = 330,017.12 × 131,715.04
  4. Step 4: Simplify right side
    239,141.32x = 43,468,218,161.48
  5. Step 5: Solve for x
    x = 43,468,218,161.48/239,141.32
  6. Step 6: Final answer
    x = 181,767.91

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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.