Home / 102,947.77-154,220.52-70,921.18

Finding the Fourth Proportional to 102,947.77, 154,220.52 and 70,921.18

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Solution

The fourth proportional to 102,947.77, 154,220.52 and 70,921.18 is: 106,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,947.77 : 154,220.52 = 70,921.18 : x
  2. Step 2: Convert to fraction form
    102,947.77/154,220.52 = 70,921.18/x
  3. Step 3: Cross multiply
    102,947.77x = 154,220.52 × 70,921.18
  4. Step 4: Simplify right side
    102,947.77x = 10,937,501,258.61
  5. Step 5: Solve for x
    x = 10,937,501,258.61/102,947.77
  6. Step 6: Final answer
    x = 106,243.21

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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.