Home / 105,727.92-158,280.72-70,580.40

Finding the Fourth Proportional to 105,727.92, 158,280.72 and 70,580.40

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Solution

The fourth proportional to 105,727.92, 158,280.72 and 70,580.40 is: 105,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,727.92 : 158,280.72 = 70,580.40 : x
  2. Step 2: Convert to fraction form
    105,727.92/158,280.72 = 70,580.40/x
  3. Step 3: Cross multiply
    105,727.92x = 158,280.72 × 70,580.40
  4. Step 4: Simplify right side
    105,727.92x = 11,171,516,529.89
  5. Step 5: Solve for x
    x = 11,171,516,529.89/105,727.92
  6. Step 6: Final answer
    x = 105,662.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.