Home / 137,600.40-189,807.99-86,532.33

Finding the Fourth Proportional to 137,600.40, 189,807.99 and 86,532.33

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Solution

The fourth proportional to 137,600.40, 189,807.99 and 86,532.33 is: 119,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,600.40 : 189,807.99 = 86,532.33 : x
  2. Step 2: Convert to fraction form
    137,600.40/189,807.99 = 86,532.33/x
  3. Step 3: Cross multiply
    137,600.40x = 189,807.99 × 86,532.33
  4. Step 4: Simplify right side
    137,600.40x = 16,424,527,627.32
  5. Step 5: Solve for x
    x = 16,424,527,627.32/137,600.40
  6. Step 6: Final answer
    x = 119,363.95

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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.