Home / 154,107.04-212,666.98-86,123.97

Finding the Fourth Proportional to 154,107.04, 212,666.98 and 86,123.97

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Solution

The fourth proportional to 154,107.04, 212,666.98 and 86,123.97 is: 118,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,107.04 : 212,666.98 = 86,123.97 : x
  2. Step 2: Convert to fraction form
    154,107.04/212,666.98 = 86,123.97/x
  3. Step 3: Cross multiply
    154,107.04x = 212,666.98 × 86,123.97
  4. Step 4: Simplify right side
    154,107.04x = 18,315,725,917.25
  5. Step 5: Solve for x
    x = 18,315,725,917.25/154,107.04
  6. Step 6: Final answer
    x = 118,850.68

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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.