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Finding the Fourth Proportional to 150,596.64, 207,807.95 and 90,165.71

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Solution

The fourth proportional to 150,596.64, 207,807.95 and 90,165.71 is: 124,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,596.64 : 207,807.95 = 90,165.71 : x
  2. Step 2: Convert to fraction form
    150,596.64/207,807.95 = 90,165.71/x
  3. Step 3: Cross multiply
    150,596.64x = 207,807.95 × 90,165.71
  4. Step 4: Simplify right side
    150,596.64x = 18,737,152,100.33
  5. Step 5: Solve for x
    x = 18,737,152,100.33/150,596.64
  6. Step 6: Final answer
    x = 124,419.46

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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.