Home / 134,619.50-185,776.20-74,192.36

Finding the Fourth Proportional to 134,619.50, 185,776.20 and 74,192.36

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Solution

The fourth proportional to 134,619.50, 185,776.20 and 74,192.36 is: 102,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,619.50 : 185,776.20 = 74,192.36 : x
  2. Step 2: Convert to fraction form
    134,619.50/185,776.20 = 74,192.36/x
  3. Step 3: Cross multiply
    134,619.50x = 185,776.20 × 74,192.36
  4. Step 4: Simplify right side
    134,619.50x = 13,783,173,780.95
  5. Step 5: Solve for x
    x = 13,783,173,780.95/134,619.50
  6. Step 6: Final answer
    x = 102,386.16

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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.