Home / 131,741.12-181,802.75-75,152.50

Finding the Fourth Proportional to 131,741.12, 181,802.75 and 75,152.50

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Solution

The fourth proportional to 131,741.12, 181,802.75 and 75,152.50 is: 103,710.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,741.12 : 181,802.75 = 75,152.50 : x
  2. Step 2: Convert to fraction form
    131,741.12/181,802.75 = 75,152.50/x
  3. Step 3: Cross multiply
    131,741.12x = 181,802.75 × 75,152.50
  4. Step 4: Simplify right side
    131,741.12x = 13,662,930,241.97
  5. Step 5: Solve for x
    x = 13,662,930,241.97/131,741.12
  6. Step 6: Final answer
    x = 103,710.44

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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.