Home / 102,915.10-154,372.65-96,694.30

Finding the Fourth Proportional to 102,915.10, 154,372.65 and 96,694.30

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Solution

The fourth proportional to 102,915.10, 154,372.65 and 96,694.30 is: 145,041.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,915.10 : 154,372.65 = 96,694.30 : x
  2. Step 2: Convert to fraction form
    102,915.10/154,372.65 = 96,694.30/x
  3. Step 3: Cross multiply
    102,915.10x = 154,372.65 × 96,694.30
  4. Step 4: Simplify right side
    102,915.10x = 14,926,955,330.90
  5. Step 5: Solve for x
    x = 14,926,955,330.90/102,915.10
  6. Step 6: Final answer
    x = 145,041.45

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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.