Home / 102,947.56-142,055.67-57,628.06

Finding the Fourth Proportional to 102,947.56, 142,055.67 and 57,628.06

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Solution

The fourth proportional to 102,947.56, 142,055.67 and 57,628.06 is: 79,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,947.56 : 142,055.67 = 57,628.06 : x
  2. Step 2: Convert to fraction form
    102,947.56/142,055.67 = 57,628.06/x
  3. Step 3: Cross multiply
    102,947.56x = 142,055.67 × 57,628.06
  4. Step 4: Simplify right side
    102,947.56x = 8,186,392,535.07
  5. Step 5: Solve for x
    x = 8,186,392,535.07/102,947.56
  6. Step 6: Final answer
    x = 79,520.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.