Home / 131,411.70-181,351.88-74,051.55

Finding the Fourth Proportional to 131,411.70, 181,351.88 and 74,051.55

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Solution

The fourth proportional to 131,411.70, 181,351.88 and 74,051.55 is: 102,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,411.70 : 181,351.88 = 74,051.55 : x
  2. Step 2: Convert to fraction form
    131,411.70/181,351.88 = 74,051.55/x
  3. Step 3: Cross multiply
    131,411.70x = 181,351.88 × 74,051.55
  4. Step 4: Simplify right side
    131,411.70x = 13,429,387,716.85
  5. Step 5: Solve for x
    x = 13,429,387,716.85/131,411.70
  6. Step 6: Final answer
    x = 102,193.24

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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.