Home / 137,587.04-189,800.24-89,868.32

Finding the Fourth Proportional to 137,587.04, 189,800.24 and 89,868.32

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Solution

The fourth proportional to 137,587.04, 189,800.24 and 89,868.32 is: 123,972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,587.04 : 189,800.24 = 89,868.32 : x
  2. Step 2: Convert to fraction form
    137,587.04/189,800.24 = 89,868.32/x
  3. Step 3: Cross multiply
    137,587.04x = 189,800.24 × 89,868.32
  4. Step 4: Simplify right side
    137,587.04x = 17,057,028,704.40
  5. Step 5: Solve for x
    x = 17,057,028,704.40/137,587.04
  6. Step 6: Final answer
    x = 123,972.64

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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.