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Finding the Fourth Proportional to 90,102.59, 124,198.43 and 70,951.98

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Solution

The fourth proportional to 90,102.59, 124,198.43 and 70,951.98 is: 97,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102.59 : 124,198.43 = 70,951.98 : x
  2. Step 2: Convert to fraction form
    90,102.59/124,198.43 = 70,951.98/x
  3. Step 3: Cross multiply
    90,102.59x = 124,198.43 × 70,951.98
  4. Step 4: Simplify right side
    90,102.59x = 8,812,124,166.63
  5. Step 5: Solve for x
    x = 8,812,124,166.63/90,102.59
  6. Step 6: Final answer
    x = 97,801.01

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1.5x scale

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.