Home / 126,424.17-174,470.43-72,709.17

Finding the Fourth Proportional to 126,424.17, 174,470.43 and 72,709.17

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Solution

The fourth proportional to 126,424.17, 174,470.43 and 72,709.17 is: 100,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,424.17 : 174,470.43 = 72,709.17 : x
  2. Step 2: Convert to fraction form
    126,424.17/174,470.43 = 72,709.17/x
  3. Step 3: Cross multiply
    126,424.17x = 174,470.43 × 72,709.17
  4. Step 4: Simplify right side
    126,424.17x = 12,685,600,154.84
  5. Step 5: Solve for x
    x = 12,685,600,154.84/126,424.17
  6. Step 6: Final answer
    x = 100,341.57

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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.