Home / 87,316.81-130,976.13-69,897.37

Finding the Fourth Proportional to 87,316.81, 130,976.13 and 69,897.37

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Solution

The fourth proportional to 87,316.81, 130,976.13 and 69,897.37 is: 104,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,316.81 : 130,976.13 = 69,897.37 : x
  2. Step 2: Convert to fraction form
    87,316.81/130,976.13 = 69,897.37/x
  3. Step 3: Cross multiply
    87,316.81x = 130,976.13 × 69,897.37
  4. Step 4: Simplify right side
    87,316.81x = 9,154,887,019.78
  5. Step 5: Solve for x
    x = 9,154,887,019.78/87,316.81
  6. Step 6: Final answer
    x = 104,846.79

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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.