Home / 130,892.30-196,273.79-76,870.53

Finding the Fourth Proportional to 130,892.30, 196,273.79 and 76,870.53

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Solution

The fourth proportional to 130,892.30, 196,273.79 and 76,870.53 is: 115,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,892.30 : 196,273.79 = 76,870.53 : x
  2. Step 2: Convert to fraction form
    130,892.30/196,273.79 = 76,870.53/x
  3. Step 3: Cross multiply
    130,892.30x = 196,273.79 × 76,870.53
  4. Step 4: Simplify right side
    130,892.30x = 15,087,670,166.32
  5. Step 5: Solve for x
    x = 15,087,670,166.32/130,892.30
  6. Step 6: Final answer
    x = 115,267.82

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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.