Home / 102,019.55-153,029.33-74,371.55

Finding the Fourth Proportional to 102,019.55, 153,029.33 and 74,371.55

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Solution

The fourth proportional to 102,019.55, 153,029.33 and 74,371.55 is: 111,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,019.55 : 153,029.33 = 74,371.55 : x
  2. Step 2: Convert to fraction form
    102,019.55/153,029.33 = 74,371.55/x
  3. Step 3: Cross multiply
    102,019.55x = 153,029.33 × 74,371.55
  4. Step 4: Simplify right side
    102,019.55x = 11,381,028,095.70
  5. Step 5: Solve for x
    x = 11,381,028,095.70/102,019.55
  6. Step 6: Final answer
    x = 111,557.33

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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.