Home / 151,463.35-208,985.70-86,928.61

Finding the Fourth Proportional to 151,463.35, 208,985.70 and 86,928.61

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Solution

The fourth proportional to 151,463.35, 208,985.70 and 86,928.61 is: 119,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,463.35 : 208,985.70 = 86,928.61 : x
  2. Step 2: Convert to fraction form
    151,463.35/208,985.70 = 86,928.61/x
  3. Step 3: Cross multiply
    151,463.35x = 208,985.70 × 86,928.61
  4. Step 4: Simplify right side
    151,463.35x = 18,166,836,410.88
  5. Step 5: Solve for x
    x = 18,166,836,410.88/151,463.35
  6. Step 6: Final answer
    x = 119,942.13

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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.