Home / 147,733.60-221,672.40-68,807.20

Finding the Fourth Proportional to 147,733.60, 221,672.40 and 68,807.20

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Solution

The fourth proportional to 147,733.60, 221,672.40 and 68,807.20 is: 103,244.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,733.60 : 221,672.40 = 68,807.20 : x
  2. Step 2: Convert to fraction form
    147,733.60/221,672.40 = 68,807.20/x
  3. Step 3: Cross multiply
    147,733.60x = 221,672.40 × 68,807.20
  4. Step 4: Simplify right side
    147,733.60x = 15,252,657,161.28
  5. Step 5: Solve for x
    x = 15,252,657,161.28/147,733.60
  6. Step 6: Final answer
    x = 103,244.33

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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.