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Finding the Fourth Proportional to 109,208.93, 150,671.95 and 89,031.02

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Solution

The fourth proportional to 109,208.93, 150,671.95 and 89,031.02 is: 122,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,208.93 : 150,671.95 = 89,031.02 : x
  2. Step 2: Convert to fraction form
    109,208.93/150,671.95 = 89,031.02/x
  3. Step 3: Cross multiply
    109,208.93x = 150,671.95 × 89,031.02
  4. Step 4: Simplify right side
    109,208.93x = 13,414,476,417.95
  5. Step 5: Solve for x
    x = 13,414,476,417.95/109,208.93
  6. Step 6: Final answer
    x = 122,833.15

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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.