Home / 123,539.11-185,378.67-56,979.23

Finding the Fourth Proportional to 123,539.11, 185,378.67 and 56,979.23

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Solution

The fourth proportional to 123,539.11, 185,378.67 and 56,979.23 is: 85,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,539.11 : 185,378.67 = 56,979.23 : x
  2. Step 2: Convert to fraction form
    123,539.11/185,378.67 = 56,979.23/x
  3. Step 3: Cross multiply
    123,539.11x = 185,378.67 × 56,979.23
  4. Step 4: Simplify right side
    123,539.11x = 10,562,732,948.13
  5. Step 5: Solve for x
    x = 10,562,732,948.13/123,539.11
  6. Step 6: Final answer
    x = 85,501.13

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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.