Home / 131,590.40-181,599.44-74,992.64

Finding the Fourth Proportional to 131,590.40, 181,599.44 and 74,992.64

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Solution

The fourth proportional to 131,590.40, 181,599.44 and 74,992.64 is: 103,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,590.40 : 181,599.44 = 74,992.64 : x
  2. Step 2: Convert to fraction form
    131,590.40/181,599.44 = 74,992.64/x
  3. Step 3: Cross multiply
    131,590.40x = 181,599.44 × 74,992.64
  4. Step 4: Simplify right side
    131,590.40x = 13,618,621,428.12
  5. Step 5: Solve for x
    x = 13,618,621,428.12/131,590.40
  6. Step 6: Final answer
    x = 103,492.51

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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.