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Finding the Fourth Proportional to 100,957.70, 151,436.55 and 69,464.90

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Solution

The fourth proportional to 100,957.70, 151,436.55 and 69,464.90 is: 104,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,957.70 : 151,436.55 = 69,464.90 : x
  2. Step 2: Convert to fraction form
    100,957.70/151,436.55 = 69,464.90/x
  3. Step 3: Cross multiply
    100,957.70x = 151,436.55 × 69,464.90
  4. Step 4: Simplify right side
    100,957.70x = 10,519,524,802.10
  5. Step 5: Solve for x
    x = 10,519,524,802.10/100,957.70
  6. Step 6: Final answer
    x = 104,197.35

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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.