Home / 103,570.56-155,248.11-70,293.33

Finding the Fourth Proportional to 103,570.56, 155,248.11 and 70,293.33

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Solution

The fourth proportional to 103,570.56, 155,248.11 and 70,293.33 is: 105,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,570.56 : 155,248.11 = 70,293.33 : x
  2. Step 2: Convert to fraction form
    103,570.56/155,248.11 = 70,293.33/x
  3. Step 3: Cross multiply
    103,570.56x = 155,248.11 × 70,293.33
  4. Step 4: Simplify right side
    103,570.56x = 10,912,906,628.11
  5. Step 5: Solve for x
    x = 10,912,906,628.11/103,570.56
  6. Step 6: Final answer
    x = 105,366.88

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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.