Home / 113,388.69-170,082.72-54,210.54

Finding the Fourth Proportional to 113,388.69, 170,082.72 and 54,210.54

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Solution

The fourth proportional to 113,388.69, 170,082.72 and 54,210.54 is: 81,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,388.69 : 170,082.72 = 54,210.54 : x
  2. Step 2: Convert to fraction form
    113,388.69/170,082.72 = 54,210.54/x
  3. Step 3: Cross multiply
    113,388.69x = 170,082.72 × 54,210.54
  4. Step 4: Simplify right side
    113,388.69x = 9,220,276,095.87
  5. Step 5: Solve for x
    x = 9,220,276,095.87/113,388.69
  6. Step 6: Final answer
    x = 81,315.66

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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.