Home / 156,985.20-216,583.56-93,321.36

Finding the Fourth Proportional to 156,985.20, 216,583.56 and 93,321.36

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Solution

The fourth proportional to 156,985.20, 216,583.56 and 93,321.36 is: 128,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.20 : 216,583.56 = 93,321.36 : x
  2. Step 2: Convert to fraction form
    156,985.20/216,583.56 = 93,321.36/x
  3. Step 3: Cross multiply
    156,985.20x = 216,583.56 × 93,321.36
  4. Step 4: Simplify right side
    156,985.20x = 20,211,872,372.84
  5. Step 5: Solve for x
    x = 20,211,872,372.84/156,985.20
  6. Step 6: Final answer
    x = 128,750.18

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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.