Home / 423,085.24-634,619.66-103,239.19

Finding the Fourth Proportional to 423,085.24, 634,619.66 and 103,239.19

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Solution

The fourth proportional to 423,085.24, 634,619.66 and 103,239.19 is: 154,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,085.24 : 634,619.66 = 103,239.19 : x
  2. Step 2: Convert to fraction form
    423,085.24/634,619.66 = 103,239.19/x
  3. Step 3: Cross multiply
    423,085.24x = 634,619.66 × 103,239.19
  4. Step 4: Simplify right side
    423,085.24x = 65,517,619,656.48
  5. Step 5: Solve for x
    x = 65,517,619,656.48/423,085.24
  6. Step 6: Final answer
    x = 154,856.78

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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.