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Finding the Fourth Proportional to 109,088.11, 150,370.04 and 99,935.51

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Solution

The fourth proportional to 109,088.11, 150,370.04 and 99,935.51 is: 137,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,088.11 : 150,370.04 = 99,935.51 : x
  2. Step 2: Convert to fraction form
    109,088.11/150,370.04 = 99,935.51/x
  3. Step 3: Cross multiply
    109,088.11x = 150,370.04 × 99,935.51
  4. Step 4: Simplify right side
    109,088.11x = 15,027,307,261.88
  5. Step 5: Solve for x
    x = 15,027,307,261.88/109,088.11
  6. Step 6: Final answer
    x = 137,753.85

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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.