Home / 126,243.04-174,225.78-72,538.40

Finding the Fourth Proportional to 126,243.04, 174,225.78 and 72,538.40

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Solution

The fourth proportional to 126,243.04, 174,225.78 and 72,538.40 is: 100,108.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,243.04 : 174,225.78 = 72,538.40 : x
  2. Step 2: Convert to fraction form
    126,243.04/174,225.78 = 72,538.40/x
  3. Step 3: Cross multiply
    126,243.04x = 174,225.78 × 72,538.40
  4. Step 4: Simplify right side
    126,243.04x = 12,638,059,319.95
  5. Step 5: Solve for x
    x = 12,638,059,319.95/126,243.04
  6. Step 6: Final answer
    x = 100,108.96

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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.