Home / 131,569.86-181,566.14-74,209.01

Finding the Fourth Proportional to 131,569.86, 181,566.14 and 74,209.01

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Solution

The fourth proportional to 131,569.86, 181,566.14 and 74,209.01 is: 102,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,569.86 : 181,566.14 = 74,209.01 : x
  2. Step 2: Convert to fraction form
    131,569.86/181,566.14 = 74,209.01/x
  3. Step 3: Cross multiply
    131,569.86x = 181,566.14 × 74,209.01
  4. Step 4: Simplify right side
    131,569.86x = 13,473,843,971.85
  5. Step 5: Solve for x
    x = 13,473,843,971.85/131,569.86
  6. Step 6: Final answer
    x = 102,408.28

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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.