Home / 156,921.20-216,569.40-93,258.44

Finding the Fourth Proportional to 156,921.20, 216,569.40 and 93,258.44

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Solution

The fourth proportional to 156,921.20, 216,569.40 and 93,258.44 is: 128,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.20 : 216,569.40 = 93,258.44 : x
  2. Step 2: Convert to fraction form
    156,921.20/216,569.40 = 93,258.44/x
  3. Step 3: Cross multiply
    156,921.20x = 216,569.40 × 93,258.44
  4. Step 4: Simplify right side
    156,921.20x = 20,196,924,395.74
  5. Step 5: Solve for x
    x = 20,196,924,395.74/156,921.20
  6. Step 6: Final answer
    x = 128,707.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.