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Finding the Fourth Proportional to 102,951.30, 154,426.95 and 99,014.70

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Solution

The fourth proportional to 102,951.30, 154,426.95 and 99,014.70 is: 148,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,951.30 : 154,426.95 = 99,014.70 : x
  2. Step 2: Convert to fraction form
    102,951.30/154,426.95 = 99,014.70/x
  3. Step 3: Cross multiply
    102,951.30x = 154,426.95 × 99,014.70
  4. Step 4: Simplify right side
    102,951.30x = 15,290,538,126.17
  5. Step 5: Solve for x
    x = 15,290,538,126.17/102,951.30
  6. Step 6: Final answer
    x = 148,522.05

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1.5x scale

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.