Home / 121,943.61-182,911.02-31,985.60

Finding the Fourth Proportional to 121,943.61, 182,911.02 and 31,985.60

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Solution

The fourth proportional to 121,943.61, 182,911.02 and 31,985.60 is: 47,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,943.61 : 182,911.02 = 31,985.60 : x
  2. Step 2: Convert to fraction form
    121,943.61/182,911.02 = 31,985.60/x
  3. Step 3: Cross multiply
    121,943.61x = 182,911.02 × 31,985.60
  4. Step 4: Simplify right side
    121,943.61x = 5,850,519,058.64
  5. Step 5: Solve for x
    x = 5,850,519,058.64/121,943.61
  6. Step 6: Final answer
    x = 47,977.25

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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.