Home / 70,151.14-105,242.29-20,227.35

Finding the Fourth Proportional to 70,151.14, 105,242.29 and 20,227.35

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Solution

The fourth proportional to 70,151.14, 105,242.29 and 20,227.35 is: 30,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,151.14 : 105,242.29 = 20,227.35 : x
  2. Step 2: Convert to fraction form
    70,151.14/105,242.29 = 20,227.35/x
  3. Step 3: Cross multiply
    70,151.14x = 105,242.29 × 20,227.35
  4. Step 4: Simplify right side
    70,151.14x = 2,128,772,584.06
  5. Step 5: Solve for x
    x = 2,128,772,584.06/70,151.14
  6. Step 6: Final answer
    x = 30,345.52

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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.