Home / 126,554.89-174,640.21-72,841.63

Finding the Fourth Proportional to 126,554.89, 174,640.21 and 72,841.63

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Solution

The fourth proportional to 126,554.89, 174,640.21 and 72,841.63 is: 100,518.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,554.89 : 174,640.21 = 72,841.63 : x
  2. Step 2: Convert to fraction form
    126,554.89/174,640.21 = 72,841.63/x
  3. Step 3: Cross multiply
    126,554.89x = 174,640.21 × 72,841.63
  4. Step 4: Simplify right side
    126,554.89x = 12,721,077,559.94
  5. Step 5: Solve for x
    x = 12,721,077,559.94/126,554.89
  6. Step 6: Final answer
    x = 100,518.26

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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.