Home / 134,748.90-185,953.19-81,065.07

Finding the Fourth Proportional to 134,748.90, 185,953.19 and 81,065.07

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Solution

The fourth proportional to 134,748.90, 185,953.19 and 81,065.07 is: 111,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,748.90 : 185,953.19 = 81,065.07 : x
  2. Step 2: Convert to fraction form
    134,748.90/185,953.19 = 81,065.07/x
  3. Step 3: Cross multiply
    134,748.90x = 185,953.19 × 81,065.07
  4. Step 4: Simplify right side
    134,748.90x = 15,074,307,958.75
  5. Step 5: Solve for x
    x = 15,074,307,958.75/134,748.90
  6. Step 6: Final answer
    x = 111,869.62

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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.