Home / 121,477.78-182,216.64-65,240.50

Finding the Fourth Proportional to 121,477.78, 182,216.64 and 65,240.50

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Solution

The fourth proportional to 121,477.78, 182,216.64 and 65,240.50 is: 97,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,477.78 : 182,216.64 = 65,240.50 : x
  2. Step 2: Convert to fraction form
    121,477.78/182,216.64 = 65,240.50/x
  3. Step 3: Cross multiply
    121,477.78x = 182,216.64 × 65,240.50
  4. Step 4: Simplify right side
    121,477.78x = 11,887,904,701.92
  5. Step 5: Solve for x
    x = 11,887,904,701.92/121,477.78
  6. Step 6: Final answer
    x = 97,860.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.