Home / 121,988.02-182,936.52-42,003.40

Finding the Fourth Proportional to 121,988.02, 182,936.52 and 42,003.40

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Solution

The fourth proportional to 121,988.02, 182,936.52 and 42,003.40 is: 62,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,988.02 : 182,936.52 = 42,003.40 : x
  2. Step 2: Convert to fraction form
    121,988.02/182,936.52 = 42,003.40/x
  3. Step 3: Cross multiply
    121,988.02x = 182,936.52 × 42,003.40
  4. Step 4: Simplify right side
    121,988.02x = 7,683,955,824.17
  5. Step 5: Solve for x
    x = 7,683,955,824.17/121,988.02
  6. Step 6: Final answer
    x = 62,989.43

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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.