Home / 86,278.96-119,087.14-67,154.32

Finding the Fourth Proportional to 86,278.96, 119,087.14 and 67,154.32

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Solution

The fourth proportional to 86,278.96, 119,087.14 and 67,154.32 is: 92,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,278.96 : 119,087.14 = 67,154.32 : x
  2. Step 2: Convert to fraction form
    86,278.96/119,087.14 = 67,154.32/x
  3. Step 3: Cross multiply
    86,278.96x = 119,087.14 × 67,154.32
  4. Step 4: Simplify right side
    86,278.96x = 7,997,215,907.44
  5. Step 5: Solve for x
    x = 7,997,215,907.44/86,278.96
  6. Step 6: Final answer
    x = 92,690.22

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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.