Home / 121,578.24-182,453.02-42,698.60

Finding the Fourth Proportional to 121,578.24, 182,453.02 and 42,698.60

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Solution

The fourth proportional to 121,578.24, 182,453.02 and 42,698.60 is: 64,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,578.24 : 182,453.02 = 42,698.60 : x
  2. Step 2: Convert to fraction form
    121,578.24/182,453.02 = 42,698.60/x
  3. Step 3: Cross multiply
    121,578.24x = 182,453.02 × 42,698.60
  4. Step 4: Simplify right side
    121,578.24x = 7,790,488,519.77
  5. Step 5: Solve for x
    x = 7,790,488,519.77/121,578.24
  6. Step 6: Final answer
    x = 64,077.98

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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.