Home / 70,186.59-105,121.26-49,219.74

Finding the Fourth Proportional to 70,186.59, 105,121.26 and 49,219.74

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Solution

The fourth proportional to 70,186.59, 105,121.26 and 49,219.74 is: 73,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,186.59 : 105,121.26 = 49,219.74 : x
  2. Step 2: Convert to fraction form
    70,186.59/105,121.26 = 49,219.74/x
  3. Step 3: Cross multiply
    70,186.59x = 105,121.26 × 49,219.74
  4. Step 4: Simplify right side
    70,186.59x = 5,174,041,085.67
  5. Step 5: Solve for x
    x = 5,174,041,085.67/70,186.59
  6. Step 6: Final answer
    x = 73,718.37

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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.