Home / 140,659.26-210,917.10-45,828.46

Finding the Fourth Proportional to 140,659.26, 210,917.10 and 45,828.46

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Solution

The fourth proportional to 140,659.26, 210,917.10 and 45,828.46 is: 68,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,659.26 : 210,917.10 = 45,828.46 : x
  2. Step 2: Convert to fraction form
    140,659.26/210,917.10 = 45,828.46/x
  3. Step 3: Cross multiply
    140,659.26x = 210,917.10 × 45,828.46
  4. Step 4: Simplify right side
    140,659.26x = 9,666,005,880.67
  5. Step 5: Solve for x
    x = 9,666,005,880.67/140,659.26
  6. Step 6: Final answer
    x = 68,719.30

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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.