Home / 131,056.40-196,275.99-86,572.82

Finding the Fourth Proportional to 131,056.40, 196,275.99 and 86,572.82

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Solution

The fourth proportional to 131,056.40, 196,275.99 and 86,572.82 is: 129,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,056.40 : 196,275.99 = 86,572.82 : x
  2. Step 2: Convert to fraction form
    131,056.40/196,275.99 = 86,572.82/x
  3. Step 3: Cross multiply
    131,056.40x = 196,275.99 × 86,572.82
  4. Step 4: Simplify right side
    131,056.40x = 16,992,165,952.59
  5. Step 5: Solve for x
    x = 16,992,165,952.59/131,056.40
  6. Step 6: Final answer
    x = 129,655.37

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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.