Home / 121,985.02-182,932.02-42,000.39

Finding the Fourth Proportional to 121,985.02, 182,932.02 and 42,000.39

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Solution

The fourth proportional to 121,985.02, 182,932.02 and 42,000.39 is: 62,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,985.02 : 182,932.02 = 42,000.39 : x
  2. Step 2: Convert to fraction form
    121,985.02/182,932.02 = 42,000.39/x
  3. Step 3: Cross multiply
    121,985.02x = 182,932.02 × 42,000.39
  4. Step 4: Simplify right side
    121,985.02x = 7,683,216,183.49
  5. Step 5: Solve for x
    x = 7,683,216,183.49/121,985.02
  6. Step 6: Final answer
    x = 62,984.91

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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.