Home / 92,857.20-139,285.80-91,982.40

Finding the Fourth Proportional to 92,857.20, 139,285.80 and 91,982.40

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Solution

The fourth proportional to 92,857.20, 139,285.80 and 91,982.40 is: 137,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,857.20 : 139,285.80 = 91,982.40 : x
  2. Step 2: Convert to fraction form
    92,857.20/139,285.80 = 91,982.40/x
  3. Step 3: Cross multiply
    92,857.20x = 139,285.80 × 91,982.40
  4. Step 4: Simplify right side
    92,857.20x = 12,811,842,169.92
  5. Step 5: Solve for x
    x = 12,811,842,169.92/92,857.20
  6. Step 6: Final answer
    x = 137,973.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.