Home / 135,320.04-186,679.35-87,588.72

Finding the Fourth Proportional to 135,320.04, 186,679.35 and 87,588.72

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Solution

The fourth proportional to 135,320.04, 186,679.35 and 87,588.72 is: 120,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,320.04 : 186,679.35 = 87,588.72 : x
  2. Step 2: Convert to fraction form
    135,320.04/186,679.35 = 87,588.72/x
  3. Step 3: Cross multiply
    135,320.04x = 186,679.35 × 87,588.72
  4. Step 4: Simplify right side
    135,320.04x = 16,351,005,316.93
  5. Step 5: Solve for x
    x = 16,351,005,316.93/135,320.04
  6. Step 6: Final answer
    x = 120,832.11

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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.