Home / 126,484.43-174,555.23-72,777.60

Finding the Fourth Proportional to 126,484.43, 174,555.23 and 72,777.60

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Solution

The fourth proportional to 126,484.43, 174,555.23 and 72,777.60 is: 100,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,484.43 : 174,555.23 = 72,777.60 : x
  2. Step 2: Convert to fraction form
    126,484.43/174,555.23 = 72,777.60/x
  3. Step 3: Cross multiply
    126,484.43x = 174,555.23 × 72,777.60
  4. Step 4: Simplify right side
    126,484.43x = 12,703,710,342.96
  5. Step 5: Solve for x
    x = 12,703,710,342.96/126,484.43
  6. Step 6: Final answer
    x = 100,436.95

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1.5x scale

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.