Home / 110,678.16-166,018.86-105,299.76

Finding the Fourth Proportional to 110,678.16, 166,018.86 and 105,299.76

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Solution

The fourth proportional to 110,678.16, 166,018.86 and 105,299.76 is: 157,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,678.16 : 166,018.86 = 105,299.76 : x
  2. Step 2: Convert to fraction form
    110,678.16/166,018.86 = 105,299.76/x
  3. Step 3: Cross multiply
    110,678.16x = 166,018.86 × 105,299.76
  4. Step 4: Simplify right side
    110,678.16x = 17,481,746,113.47
  5. Step 5: Solve for x
    x = 17,481,746,113.47/110,678.16
  6. Step 6: Final answer
    x = 157,951.18

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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.