Home / 91,135.58-124,856.42-87,727.19

Finding the Fourth Proportional to 91,135.58, 124,856.42 and 87,727.19

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Solution

The fourth proportional to 91,135.58, 124,856.42 and 87,727.19 is: 120,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,135.58 : 124,856.42 = 87,727.19 : x
  2. Step 2: Convert to fraction form
    91,135.58/124,856.42 = 87,727.19/x
  3. Step 3: Cross multiply
    91,135.58x = 124,856.42 × 87,727.19
  4. Step 4: Simplify right side
    91,135.58x = 10,953,303,411.52
  5. Step 5: Solve for x
    x = 10,953,303,411.52/91,135.58
  6. Step 6: Final answer
    x = 120,186.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.