Home / 89,350.74-133,046.78-86,157.72

Finding the Fourth Proportional to 89,350.74, 133,046.78 and 86,157.72

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Solution

The fourth proportional to 89,350.74, 133,046.78 and 86,157.72 is: 128,292.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,350.74 : 133,046.78 = 86,157.72 : x
  2. Step 2: Convert to fraction form
    89,350.74/133,046.78 = 86,157.72/x
  3. Step 3: Cross multiply
    89,350.74x = 133,046.78 × 86,157.72
  4. Step 4: Simplify right side
    89,350.74x = 11,463,006,787.35
  5. Step 5: Solve for x
    x = 11,463,006,787.35/89,350.74
  6. Step 6: Final answer
    x = 128,292.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.