Home / 131,243.63-196,680.89-74,999.45

Finding the Fourth Proportional to 131,243.63, 196,680.89 and 74,999.45

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Solution

The fourth proportional to 131,243.63, 196,680.89 and 74,999.45 is: 112,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,243.63 : 196,680.89 = 74,999.45 : x
  2. Step 2: Convert to fraction form
    131,243.63/196,680.89 = 74,999.45/x
  3. Step 3: Cross multiply
    131,243.63x = 196,680.89 × 74,999.45
  4. Step 4: Simplify right side
    131,243.63x = 14,750,959,254.71
  5. Step 5: Solve for x
    x = 14,750,959,254.71/131,243.63
  6. Step 6: Final answer
    x = 112,393.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.