Home / 134,645.04-185,807.93-74,221.30

Finding the Fourth Proportional to 134,645.04, 185,807.93 and 74,221.30

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Solution

The fourth proportional to 134,645.04, 185,807.93 and 74,221.30 is: 102,424.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,645.04 : 185,807.93 = 74,221.30 : x
  2. Step 2: Convert to fraction form
    134,645.04/185,807.93 = 74,221.30/x
  3. Step 3: Cross multiply
    134,645.04x = 185,807.93 × 74,221.30
  4. Step 4: Simplify right side
    134,645.04x = 13,790,907,124.89
  5. Step 5: Solve for x
    x = 13,790,907,124.89/134,645.04
  6. Step 6: Final answer
    x = 102,424.18

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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.