Home / 272,867.70-409,362.91-83,312.21

Finding the Fourth Proportional to 272,867.70, 409,362.91 and 83,312.21

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Solution

The fourth proportional to 272,867.70, 409,362.91 and 83,312.21 is: 124,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,867.70 : 409,362.91 = 83,312.21 : x
  2. Step 2: Convert to fraction form
    272,867.70/409,362.91 = 83,312.21/x
  3. Step 3: Cross multiply
    272,867.70x = 409,362.91 × 83,312.21
  4. Step 4: Simplify right side
    272,867.70x = 34,104,928,724.13
  5. Step 5: Solve for x
    x = 34,104,928,724.13/272,867.70
  6. Step 6: Final answer
    x = 124,987.05

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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.