Home / 151,222.10-208,706.37-86,716.58

Finding the Fourth Proportional to 151,222.10, 208,706.37 and 86,716.58

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Solution

The fourth proportional to 151,222.10, 208,706.37 and 86,716.58 is: 119,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,222.10 : 208,706.37 = 86,716.58 : x
  2. Step 2: Convert to fraction form
    151,222.10/208,706.37 = 86,716.58/x
  3. Step 3: Cross multiply
    151,222.10x = 208,706.37 × 86,716.58
  4. Step 4: Simplify right side
    151,222.10x = 18,098,302,630.61
  5. Step 5: Solve for x
    x = 18,098,302,630.61/151,222.10
  6. Step 6: Final answer
    x = 119,680.28

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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.