Home / 135,463.18-186,940.53-81,737.83

Finding the Fourth Proportional to 135,463.18, 186,940.53 and 81,737.83

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Solution

The fourth proportional to 135,463.18, 186,940.53 and 81,737.83 is: 112,799.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,463.18 : 186,940.53 = 81,737.83 : x
  2. Step 2: Convert to fraction form
    135,463.18/186,940.53 = 81,737.83/x
  3. Step 3: Cross multiply
    135,463.18x = 186,940.53 × 81,737.83
  4. Step 4: Simplify right side
    135,463.18x = 15,280,113,261.25
  5. Step 5: Solve for x
    x = 15,280,113,261.25/135,463.18
  6. Step 6: Final answer
    x = 112,799.01

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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.