Home / 126,109.41-174,030.98-72,397.90

Finding the Fourth Proportional to 126,109.41, 174,030.98 and 72,397.90

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Solution

The fourth proportional to 126,109.41, 174,030.98 and 72,397.90 is: 99,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109.41 : 174,030.98 = 72,397.90 : x
  2. Step 2: Convert to fraction form
    126,109.41/174,030.98 = 72,397.90/x
  3. Step 3: Cross multiply
    126,109.41x = 174,030.98 × 72,397.90
  4. Step 4: Simplify right side
    126,109.41x = 12,599,477,749.73
  5. Step 5: Solve for x
    x = 12,599,477,749.73/126,109.41
  6. Step 6: Final answer
    x = 99,909.10

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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.