Home / 134,645.90-185,809.10-74,222.15

Finding the Fourth Proportional to 134,645.90, 185,809.10 and 74,222.15

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Solution

The fourth proportional to 134,645.90, 185,809.10 and 74,222.15 is: 102,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,645.90 : 185,809.10 = 74,222.15 : x
  2. Step 2: Convert to fraction form
    134,645.90/185,809.10 = 74,222.15/x
  3. Step 3: Cross multiply
    134,645.90x = 185,809.10 × 74,222.15
  4. Step 4: Simplify right side
    134,645.90x = 13,791,151,541.64
  5. Step 5: Solve for x
    x = 13,791,151,541.64/134,645.90
  6. Step 6: Final answer
    x = 102,425.33

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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.