Home / 86,602.23-130,199.81-80,109.27

Finding the Fourth Proportional to 86,602.23, 130,199.81 and 80,109.27

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Solution

The fourth proportional to 86,602.23, 130,199.81 and 80,109.27 is: 120,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,602.23 : 130,199.81 = 80,109.27 : x
  2. Step 2: Convert to fraction form
    86,602.23/130,199.81 = 80,109.27/x
  3. Step 3: Cross multiply
    86,602.23x = 130,199.81 × 80,109.27
  4. Step 4: Simplify right side
    86,602.23x = 10,430,211,332.69
  5. Step 5: Solve for x
    x = 10,430,211,332.69/86,602.23
  6. Step 6: Final answer
    x = 120,438.14

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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.