Home / 126,439.23-174,491.16-72,724.17

Finding the Fourth Proportional to 126,439.23, 174,491.16 and 72,724.17

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Solution

The fourth proportional to 126,439.23, 174,491.16 and 72,724.17 is: 100,362.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,439.23 : 174,491.16 = 72,724.17 : x
  2. Step 2: Convert to fraction form
    126,439.23/174,491.16 = 72,724.17/x
  3. Step 3: Cross multiply
    126,439.23x = 174,491.16 × 72,724.17
  4. Step 4: Simplify right side
    126,439.23x = 12,689,724,783.34
  5. Step 5: Solve for x
    x = 12,689,724,783.34/126,439.23
  6. Step 6: Final answer
    x = 100,362.24

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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.