Home / 131,730.26-181,738.14-86,433.22

Finding the Fourth Proportional to 131,730.26, 181,738.14 and 86,433.22

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Solution

The fourth proportional to 131,730.26, 181,738.14 and 86,433.22 is: 119,245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,730.26 : 181,738.14 = 86,433.22 : x
  2. Step 2: Convert to fraction form
    131,730.26/181,738.14 = 86,433.22/x
  3. Step 3: Cross multiply
    131,730.26x = 181,738.14 × 86,433.22
  4. Step 4: Simplify right side
    131,730.26x = 15,708,212,637.01
  5. Step 5: Solve for x
    x = 15,708,212,637.01/131,730.26
  6. Step 6: Final answer
    x = 119,245.29

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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.