Home / 86,938.19-130,238.07-64,100.42

Finding the Fourth Proportional to 86,938.19, 130,238.07 and 64,100.42

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Solution

The fourth proportional to 86,938.19, 130,238.07 and 64,100.42 is: 96,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938.19 : 130,238.07 = 64,100.42 : x
  2. Step 2: Convert to fraction form
    86,938.19/130,238.07 = 64,100.42/x
  3. Step 3: Cross multiply
    86,938.19x = 130,238.07 × 64,100.42
  4. Step 4: Simplify right side
    86,938.19x = 8,348,314,986.99
  5. Step 5: Solve for x
    x = 8,348,314,986.99/86,938.19
  6. Step 6: Final answer
    x = 96,025.87

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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.