Home / 86,958.46-131,030.00-71,509.53

Finding the Fourth Proportional to 86,958.46, 131,030.00 and 71,509.53

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Solution

The fourth proportional to 86,958.46, 131,030.00 and 71,509.53 is: 107,751.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958.46 : 131,030.00 = 71,509.53 : x
  2. Step 2: Convert to fraction form
    86,958.46/131,030.00 = 71,509.53/x
  3. Step 3: Cross multiply
    86,958.46x = 131,030.00 × 71,509.53
  4. Step 4: Simplify right side
    86,958.46x = 9,369,893,894.67
  5. Step 5: Solve for x
    x = 9,369,893,894.67/86,958.46
  6. Step 6: Final answer
    x = 107,751.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.