Home / 126,411.60-189,617.40-110,859.60

Finding the Fourth Proportional to 126,411.60, 189,617.40 and 110,859.60

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Solution

The fourth proportional to 126,411.60, 189,617.40 and 110,859.60 is: 166,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,411.60 : 189,617.40 = 110,859.60 : x
  2. Step 2: Convert to fraction form
    126,411.60/189,617.40 = 110,859.60/x
  3. Step 3: Cross multiply
    126,411.60x = 189,617.40 × 110,859.60
  4. Step 4: Simplify right side
    126,411.60x = 21,020,909,117.04
  5. Step 5: Solve for x
    x = 21,020,909,117.04/126,411.60
  6. Step 6: Final answer
    x = 166,289.40

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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.