Home / 131,317.32-181,196.82-74,729.64

Finding the Fourth Proportional to 131,317.32, 181,196.82 and 74,729.64

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Solution

The fourth proportional to 131,317.32, 181,196.82 and 74,729.64 is: 103,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,317.32 : 181,196.82 = 74,729.64 : x
  2. Step 2: Convert to fraction form
    131,317.32/181,196.82 = 74,729.64/x
  3. Step 3: Cross multiply
    131,317.32x = 181,196.82 × 74,729.64
  4. Step 4: Simplify right side
    131,317.32x = 13,540,773,127.74
  5. Step 5: Solve for x
    x = 13,540,773,127.74/131,317.32
  6. Step 6: Final answer
    x = 103,114.91

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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.