Home / 131,577.11-181,578.32-74,219.16

Finding the Fourth Proportional to 131,577.11, 181,578.32 and 74,219.16

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Solution

The fourth proportional to 131,577.11, 181,578.32 and 74,219.16 is: 102,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,577.11 : 181,578.32 = 74,219.16 : x
  2. Step 2: Convert to fraction form
    131,577.11/181,578.32 = 74,219.16/x
  3. Step 3: Cross multiply
    131,577.11x = 181,578.32 × 74,219.16
  4. Step 4: Simplify right side
    131,577.11x = 13,476,590,013.52
  5. Step 5: Solve for x
    x = 13,476,590,013.52/131,577.11
  6. Step 6: Final answer
    x = 102,423.52

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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.