Home / 131,213.51-181,089.21-73,854.57

Finding the Fourth Proportional to 131,213.51, 181,089.21 and 73,854.57

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Solution

The fourth proportional to 131,213.51, 181,089.21 and 73,854.57 is: 101,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,213.51 : 181,089.21 = 73,854.57 : x
  2. Step 2: Convert to fraction form
    131,213.51/181,089.21 = 73,854.57/x
  3. Step 3: Cross multiply
    131,213.51x = 181,089.21 × 73,854.57
  4. Step 4: Simplify right side
    131,213.51x = 13,374,265,736.19
  5. Step 5: Solve for x
    x = 13,374,265,736.19/131,213.51
  6. Step 6: Final answer
    x = 101,927.51

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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.