Home / 209,639.28-314,508.06-69,397.86

Finding the Fourth Proportional to 209,639.28, 314,508.06 and 69,397.86

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Solution

The fourth proportional to 209,639.28, 314,508.06 and 69,397.86 is: 104,113.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,639.28 : 314,508.06 = 69,397.86 : x
  2. Step 2: Convert to fraction form
    209,639.28/314,508.06 = 69,397.86/x
  3. Step 3: Cross multiply
    209,639.28x = 314,508.06 × 69,397.86
  4. Step 4: Simplify right side
    209,639.28x = 21,826,186,316.75
  5. Step 5: Solve for x
    x = 21,826,186,316.75/209,639.28
  6. Step 6: Final answer
    x = 104,113.06

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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.