Home / 112,835.05-169,463.39-99,331.01

Finding the Fourth Proportional to 112,835.05, 169,463.39 and 99,331.01

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Solution

The fourth proportional to 112,835.05, 169,463.39 and 99,331.01 is: 149,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,835.05 : 169,463.39 = 99,331.01 : x
  2. Step 2: Convert to fraction form
    112,835.05/169,463.39 = 99,331.01/x
  3. Step 3: Cross multiply
    112,835.05x = 169,463.39 × 99,331.01
  4. Step 4: Simplify right side
    112,835.05x = 16,832,969,686.72
  5. Step 5: Solve for x
    x = 16,832,969,686.72/112,835.05
  6. Step 6: Final answer
    x = 149,182.10

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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.