Home / 122,641.31-169,206.96-71,617.23

Finding the Fourth Proportional to 122,641.31, 169,206.96 and 71,617.23

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Solution

The fourth proportional to 122,641.31, 169,206.96 and 71,617.23 is: 98,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,641.31 : 169,206.96 = 71,617.23 : x
  2. Step 2: Convert to fraction form
    122,641.31/169,206.96 = 71,617.23/x
  3. Step 3: Cross multiply
    122,641.31x = 169,206.96 × 71,617.23
  4. Step 4: Simplify right side
    122,641.31x = 12,118,133,771.92
  5. Step 5: Solve for x
    x = 12,118,133,771.92/122,641.31
  6. Step 6: Final answer
    x = 98,809.56

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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.