Home / 111,742.74-154,161.36-63,970.56

Finding the Fourth Proportional to 111,742.74, 154,161.36 and 63,970.56

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Solution

The fourth proportional to 111,742.74, 154,161.36 and 63,970.56 is: 88,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,742.74 : 154,161.36 = 63,970.56 : x
  2. Step 2: Convert to fraction form
    111,742.74/154,161.36 = 63,970.56/x
  3. Step 3: Cross multiply
    111,742.74x = 154,161.36 × 63,970.56
  4. Step 4: Simplify right side
    111,742.74x = 9,861,788,529.56
  5. Step 5: Solve for x
    x = 9,861,788,529.56/111,742.74
  6. Step 6: Final answer
    x = 88,254.40

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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.