Home / 122,752.89-169,407.86-75,015.36

Finding the Fourth Proportional to 122,752.89, 169,407.86 and 75,015.36

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Solution

The fourth proportional to 122,752.89, 169,407.86 and 75,015.36 is: 103,526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,752.89 : 169,407.86 = 75,015.36 : x
  2. Step 2: Convert to fraction form
    122,752.89/169,407.86 = 75,015.36/x
  3. Step 3: Cross multiply
    122,752.89x = 169,407.86 × 75,015.36
  4. Step 4: Simplify right side
    122,752.89x = 12,708,191,229.65
  5. Step 5: Solve for x
    x = 12,708,191,229.65/122,752.89
  6. Step 6: Final answer
    x = 103,526.62

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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.