Home / 122,828.81-169,501.34-68,380.25

Finding the Fourth Proportional to 122,828.81, 169,501.34 and 68,380.25

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Solution

The fourth proportional to 122,828.81, 169,501.34 and 68,380.25 is: 94,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,828.81 : 169,501.34 = 68,380.25 : x
  2. Step 2: Convert to fraction form
    122,828.81/169,501.34 = 68,380.25/x
  3. Step 3: Cross multiply
    122,828.81x = 169,501.34 × 68,380.25
  4. Step 4: Simplify right side
    122,828.81x = 11,590,543,327.98
  5. Step 5: Solve for x
    x = 11,590,543,327.98/122,828.81
  6. Step 6: Final answer
    x = 94,363.40

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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.