Home / 105,811.92-146,089.44-70,061.76

Finding the Fourth Proportional to 105,811.92, 146,089.44 and 70,061.76

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Solution

The fourth proportional to 105,811.92, 146,089.44 and 70,061.76 is: 96,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,811.92 : 146,089.44 = 70,061.76 : x
  2. Step 2: Convert to fraction form
    105,811.92/146,089.44 = 70,061.76/x
  3. Step 3: Cross multiply
    105,811.92x = 146,089.44 × 70,061.76
  4. Step 4: Simplify right side
    105,811.92x = 10,235,283,283.81
  5. Step 5: Solve for x
    x = 10,235,283,283.81/105,811.92
  6. Step 6: Final answer
    x = 96,730.91

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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.