Home / 135,344.96-186,860.72-86,966.40

Finding the Fourth Proportional to 135,344.96, 186,860.72 and 86,966.40

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Solution

The fourth proportional to 135,344.96, 186,860.72 and 86,966.40 is: 120,068.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,344.96 : 186,860.72 = 86,966.40 : x
  2. Step 2: Convert to fraction form
    135,344.96/186,860.72 = 86,966.40/x
  3. Step 3: Cross multiply
    135,344.96x = 186,860.72 × 86,966.40
  4. Step 4: Simplify right side
    135,344.96x = 16,250,604,119.81
  5. Step 5: Solve for x
    x = 16,250,604,119.81/135,344.96
  6. Step 6: Final answer
    x = 120,068.04

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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.