Home / 86,280.96-119,089.90-67,156.32

Finding the Fourth Proportional to 86,280.96, 119,089.90 and 67,156.32

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Solution

The fourth proportional to 86,280.96, 119,089.90 and 67,156.32 is: 92,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,280.96 : 119,089.90 = 67,156.32 : x
  2. Step 2: Convert to fraction form
    86,280.96/119,089.90 = 67,156.32/x
  3. Step 3: Cross multiply
    86,280.96x = 119,089.90 × 67,156.32
  4. Step 4: Simplify right side
    86,280.96x = 7,997,639,433.17
  5. Step 5: Solve for x
    x = 7,997,639,433.17/86,280.96
  6. Step 6: Final answer
    x = 92,692.98

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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.