Home / 131,926.62-181,995.51-86,586.30

Finding the Fourth Proportional to 131,926.62, 181,995.51 and 86,586.30

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Solution

The fourth proportional to 131,926.62, 181,995.51 and 86,586.30 is: 119,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,926.62 : 181,995.51 = 86,586.30 : x
  2. Step 2: Convert to fraction form
    131,926.62/181,995.51 = 86,586.30/x
  3. Step 3: Cross multiply
    131,926.62x = 181,995.51 × 86,586.30
  4. Step 4: Simplify right side
    131,926.62x = 15,758,317,827.51
  5. Step 5: Solve for x
    x = 15,758,317,827.51/131,926.62
  6. Step 6: Final answer
    x = 119,447.60

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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.