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Finding the Fourth Proportional to 150,472.68, 207,509.04 and 90,033.72

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Solution

The fourth proportional to 150,472.68, 207,509.04 and 90,033.72 is: 124,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,472.68 : 207,509.04 = 90,033.72 : x
  2. Step 2: Convert to fraction form
    150,472.68/207,509.04 = 90,033.72/x
  3. Step 3: Cross multiply
    150,472.68x = 207,509.04 × 90,033.72
  4. Step 4: Simplify right side
    150,472.68x = 18,682,810,804.83
  5. Step 5: Solve for x
    x = 18,682,810,804.83/150,472.68
  6. Step 6: Final answer
    x = 124,160.82

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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.