Home / 135,143.12-186,502.77-89,742.83

Finding the Fourth Proportional to 135,143.12, 186,502.77 and 89,742.83

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Solution

The fourth proportional to 135,143.12, 186,502.77 and 89,742.83 is: 123,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,143.12 : 186,502.77 = 89,742.83 : x
  2. Step 2: Convert to fraction form
    135,143.12/186,502.77 = 89,742.83/x
  3. Step 3: Cross multiply
    135,143.12x = 186,502.77 × 89,742.83
  4. Step 4: Simplify right side
    135,143.12x = 16,737,285,450.13
  5. Step 5: Solve for x
    x = 16,737,285,450.13/135,143.12
  6. Step 6: Final answer
    x = 123,848.59

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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.