Home / 135,361.02-186,795.96-74,930.40

Finding the Fourth Proportional to 135,361.02, 186,795.96 and 74,930.40

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Solution

The fourth proportional to 135,361.02, 186,795.96 and 74,930.40 is: 103,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,361.02 : 186,795.96 = 74,930.40 : x
  2. Step 2: Convert to fraction form
    135,361.02/186,795.96 = 74,930.40/x
  3. Step 3: Cross multiply
    135,361.02x = 186,795.96 × 74,930.40
  4. Step 4: Simplify right side
    135,361.02x = 13,996,696,001.18
  5. Step 5: Solve for x
    x = 13,996,696,001.18/135,361.02
  6. Step 6: Final answer
    x = 103,402.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.