Home / 151,148.35-208,586.48-86,616.31

Finding the Fourth Proportional to 151,148.35, 208,586.48 and 86,616.31

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Solution

The fourth proportional to 151,148.35, 208,586.48 and 86,616.31 is: 119,531.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,148.35 : 208,586.48 = 86,616.31 : x
  2. Step 2: Convert to fraction form
    151,148.35/208,586.48 = 86,616.31/x
  3. Step 3: Cross multiply
    151,148.35x = 208,586.48 × 86,616.31
  4. Step 4: Simplify right side
    151,148.35x = 18,066,991,213.49
  5. Step 5: Solve for x
    x = 18,066,991,213.49/151,148.35
  6. Step 6: Final answer
    x = 119,531.51

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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.