Home / 154,171.42-212,758.14-86,192.17

Finding the Fourth Proportional to 154,171.42, 212,758.14 and 86,192.17

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Solution

The fourth proportional to 154,171.42, 212,758.14 and 86,192.17 is: 118,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,171.42 : 212,758.14 = 86,192.17 : x
  2. Step 2: Convert to fraction form
    154,171.42/212,758.14 = 86,192.17/x
  3. Step 3: Cross multiply
    154,171.42x = 212,758.14 × 86,192.17
  4. Step 4: Simplify right side
    154,171.42x = 18,338,085,239.87
  5. Step 5: Solve for x
    x = 18,338,085,239.87/154,171.42
  6. Step 6: Final answer
    x = 118,946.08

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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.