Home / 124,421.67-186,632.30-99,344.21

Finding the Fourth Proportional to 124,421.67, 186,632.30 and 99,344.21

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Solution

The fourth proportional to 124,421.67, 186,632.30 and 99,344.21 is: 149,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,421.67 : 186,632.30 = 99,344.21 : x
  2. Step 2: Convert to fraction form
    124,421.67/186,632.30 = 99,344.21/x
  3. Step 3: Cross multiply
    124,421.67x = 186,632.30 × 99,344.21
  4. Step 4: Simplify right side
    124,421.67x = 18,540,837,719.18
  5. Step 5: Solve for x
    x = 18,540,837,719.18/124,421.67
  6. Step 6: Final answer
    x = 149,016.15

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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.