Home / 86,850.14-130,046.80-69,892.98

Finding the Fourth Proportional to 86,850.14, 130,046.80 and 69,892.98

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Solution

The fourth proportional to 86,850.14, 130,046.80 and 69,892.98 is: 104,655.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,850.14 : 130,046.80 = 69,892.98 : x
  2. Step 2: Convert to fraction form
    86,850.14/130,046.80 = 69,892.98/x
  3. Step 3: Cross multiply
    86,850.14x = 130,046.80 × 69,892.98
  4. Step 4: Simplify right side
    86,850.14x = 9,089,358,391.46
  5. Step 5: Solve for x
    x = 9,089,358,391.46/86,850.14
  6. Step 6: Final answer
    x = 104,655.66

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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.