Home / 126,124.96-173,871.61-99,220.77

Finding the Fourth Proportional to 126,124.96, 173,871.61 and 99,220.77

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Solution

The fourth proportional to 126,124.96, 173,871.61 and 99,220.77 is: 136,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,124.96 : 173,871.61 = 99,220.77 : x
  2. Step 2: Convert to fraction form
    126,124.96/173,871.61 = 99,220.77/x
  3. Step 3: Cross multiply
    126,124.96x = 173,871.61 × 99,220.77
  4. Step 4: Simplify right side
    126,124.96x = 17,251,675,025.34
  5. Step 5: Solve for x
    x = 17,251,675,025.34/126,124.96
  6. Step 6: Final answer
    x = 136,782.40

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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.