Home / 121,683.02-182,080.47-71,787.02

Finding the Fourth Proportional to 121,683.02, 182,080.47 and 71,787.02

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Solution

The fourth proportional to 121,683.02, 182,080.47 and 71,787.02 is: 107,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,683.02 : 182,080.47 = 71,787.02 : x
  2. Step 2: Convert to fraction form
    121,683.02/182,080.47 = 71,787.02/x
  3. Step 3: Cross multiply
    121,683.02x = 182,080.47 × 71,787.02
  4. Step 4: Simplify right side
    121,683.02x = 13,071,014,341.50
  5. Step 5: Solve for x
    x = 13,071,014,341.50/121,683.02
  6. Step 6: Final answer
    x = 107,418.56

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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.