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Finding the Fourth Proportional to 100,437.68, 150,599.42 and 77,633.46

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Solution

The fourth proportional to 100,437.68, 150,599.42 and 77,633.46 is: 116,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,437.68 : 150,599.42 = 77,633.46 : x
  2. Step 2: Convert to fraction form
    100,437.68/150,599.42 = 77,633.46/x
  3. Step 3: Cross multiply
    100,437.68x = 150,599.42 × 77,633.46
  4. Step 4: Simplify right side
    100,437.68x = 11,691,554,048.59
  5. Step 5: Solve for x
    x = 11,691,554,048.59/100,437.68
  6. Step 6: Final answer
    x = 116,406.05

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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.