Home / 131,175.87-181,021.86-74,587.24

Finding the Fourth Proportional to 131,175.87, 181,021.86 and 74,587.24

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Solution

The fourth proportional to 131,175.87, 181,021.86 and 74,587.24 is: 102,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,175.87 : 181,021.86 = 74,587.24 : x
  2. Step 2: Convert to fraction form
    131,175.87/181,021.86 = 74,587.24/x
  3. Step 3: Cross multiply
    131,175.87x = 181,021.86 × 74,587.24
  4. Step 4: Simplify right side
    131,175.87x = 13,501,920,544.13
  5. Step 5: Solve for x
    x = 13,501,920,544.13/131,175.87
  6. Step 6: Final answer
    x = 102,929.91

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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.