Home / 124,271.31-186,321.90-86,851.74

Finding the Fourth Proportional to 124,271.31, 186,321.90 and 86,851.74

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Solution

The fourth proportional to 124,271.31, 186,321.90 and 86,851.74 is: 130,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,271.31 : 186,321.90 = 86,851.74 : x
  2. Step 2: Convert to fraction form
    124,271.31/186,321.90 = 86,851.74/x
  3. Step 3: Cross multiply
    124,271.31x = 186,321.90 × 86,851.74
  4. Step 4: Simplify right side
    124,271.31x = 16,182,381,215.11
  5. Step 5: Solve for x
    x = 16,182,381,215.11/124,271.31
  6. Step 6: Final answer
    x = 130,218.16

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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.