Home / 86,637.02-130,007.37-79,586.78

Finding the Fourth Proportional to 86,637.02, 130,007.37 and 79,586.78

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Solution

The fourth proportional to 86,637.02, 130,007.37 and 79,586.78 is: 119,427.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,637.02 : 130,007.37 = 79,586.78 : x
  2. Step 2: Convert to fraction form
    86,637.02/130,007.37 = 79,586.78/x
  3. Step 3: Cross multiply
    86,637.02x = 130,007.37 × 79,586.78
  4. Step 4: Simplify right side
    86,637.02x = 10,346,867,954.57
  5. Step 5: Solve for x
    x = 10,346,867,954.57/86,637.02
  6. Step 6: Final answer
    x = 119,427.79

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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.