Home / 157,799.40-236,626.20-69,007.20

Finding the Fourth Proportional to 157,799.40, 236,626.20 and 69,007.20

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Solution

The fourth proportional to 157,799.40, 236,626.20 and 69,007.20 is: 103,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,799.40 : 236,626.20 = 69,007.20 : x
  2. Step 2: Convert to fraction form
    157,799.40/236,626.20 = 69,007.20/x
  3. Step 3: Cross multiply
    157,799.40x = 236,626.20 × 69,007.20
  4. Step 4: Simplify right side
    157,799.40x = 16,328,911,508.64
  5. Step 5: Solve for x
    x = 16,328,911,508.64/157,799.40
  6. Step 6: Final answer
    x = 103,478.92

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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.