Home / 134,450.49-185,538.28-74,020.53

Finding the Fourth Proportional to 134,450.49, 185,538.28 and 74,020.53

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Solution

The fourth proportional to 134,450.49, 185,538.28 and 74,020.53 is: 102,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,450.49 : 185,538.28 = 74,020.53 : x
  2. Step 2: Convert to fraction form
    134,450.49/185,538.28 = 74,020.53/x
  3. Step 3: Cross multiply
    134,450.49x = 185,538.28 × 74,020.53
  4. Step 4: Simplify right side
    134,450.49x = 13,733,641,820.89
  5. Step 5: Solve for x
    x = 13,733,641,820.89/134,450.49
  6. Step 6: Final answer
    x = 102,146.46

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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.