Home / 102,015.10-153,027.78-72,348.22

Finding the Fourth Proportional to 102,015.10, 153,027.78 and 72,348.22

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Solution

The fourth proportional to 102,015.10, 153,027.78 and 72,348.22 is: 108,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.10 : 153,027.78 = 72,348.22 : x
  2. Step 2: Convert to fraction form
    102,015.10/153,027.78 = 72,348.22/x
  3. Step 3: Cross multiply
    102,015.10x = 153,027.78 × 72,348.22
  4. Step 4: Simplify right side
    102,015.10x = 11,071,287,493.55
  5. Step 5: Solve for x
    x = 11,071,287,493.55/102,015.10
  6. Step 6: Final answer
    x = 108,525.97

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1.5x scale

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.