Home / 143,326.32-197,737.92-86,717.04

Finding the Fourth Proportional to 143,326.32, 197,737.92 and 86,717.04

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Solution

The fourth proportional to 143,326.32, 197,737.92 and 86,717.04 is: 119,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,326.32 : 197,737.92 = 86,717.04 : x
  2. Step 2: Convert to fraction form
    143,326.32/197,737.92 = 86,717.04/x
  3. Step 3: Cross multiply
    143,326.32x = 197,737.92 × 86,717.04
  4. Step 4: Simplify right side
    143,326.32x = 17,147,247,118.16
  5. Step 5: Solve for x
    x = 17,147,247,118.16/143,326.32
  6. Step 6: Final answer
    x = 119,637.81

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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.