Home / 130,981.46-196,176.80-91,713.88

Finding the Fourth Proportional to 130,981.46, 196,176.80 and 91,713.88

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Solution

The fourth proportional to 130,981.46, 196,176.80 and 91,713.88 is: 137,363.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,981.46 : 196,176.80 = 91,713.88 : x
  2. Step 2: Convert to fraction form
    130,981.46/196,176.80 = 91,713.88/x
  3. Step 3: Cross multiply
    130,981.46x = 196,176.80 × 91,713.88
  4. Step 4: Simplify right side
    130,981.46x = 17,992,134,054.53
  5. Step 5: Solve for x
    x = 17,992,134,054.53/130,981.46
  6. Step 6: Final answer
    x = 137,363.98

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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.