Home / 156,915.14-216,577.60-103,205.30

Finding the Fourth Proportional to 156,915.14, 216,577.60 and 103,205.30

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Solution

The fourth proportional to 156,915.14, 216,577.60 and 103,205.30 is: 142,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.14 : 216,577.60 = 103,205.30 : x
  2. Step 2: Convert to fraction form
    156,915.14/216,577.60 = 103,205.30/x
  3. Step 3: Cross multiply
    156,915.14x = 216,577.60 × 103,205.30
  4. Step 4: Simplify right side
    156,915.14x = 22,351,956,181.28
  5. Step 5: Solve for x
    x = 22,351,956,181.28/156,915.14
  6. Step 6: Final answer
    x = 142,446.14

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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.