Home / 149,976.12-206,976.12-86,312.52

Finding the Fourth Proportional to 149,976.12, 206,976.12 and 86,312.52

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Solution

The fourth proportional to 149,976.12, 206,976.12 and 86,312.52 is: 119,116.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,976.12 : 206,976.12 = 86,312.52 : x
  2. Step 2: Convert to fraction form
    149,976.12/206,976.12 = 86,312.52/x
  3. Step 3: Cross multiply
    149,976.12x = 206,976.12 × 86,312.52
  4. Step 4: Simplify right side
    149,976.12x = 17,864,630,497.02
  5. Step 5: Solve for x
    x = 17,864,630,497.02/149,976.12
  6. Step 6: Final answer
    x = 119,116.50

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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.