Home / 126,785.46-174,938.92-72,336.45

Finding the Fourth Proportional to 126,785.46, 174,938.92 and 72,336.45

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Solution

The fourth proportional to 126,785.46, 174,938.92 and 72,336.45 is: 99,810.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,785.46 : 174,938.92 = 72,336.45 : x
  2. Step 2: Convert to fraction form
    126,785.46/174,938.92 = 72,336.45/x
  3. Step 3: Cross multiply
    126,785.46x = 174,938.92 × 72,336.45
  4. Step 4: Simplify right side
    126,785.46x = 12,654,460,914.81
  5. Step 5: Solve for x
    x = 12,654,460,914.81/126,785.46
  6. Step 6: Final answer
    x = 99,810.03

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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.