Home / 129,762.64-179,105.07-73,206.82

Finding the Fourth Proportional to 129,762.64, 179,105.07 and 73,206.82

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Solution

The fourth proportional to 129,762.64, 179,105.07 and 73,206.82 is: 101,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,762.64 : 179,105.07 = 73,206.82 : x
  2. Step 2: Convert to fraction form
    129,762.64/179,105.07 = 73,206.82/x
  3. Step 3: Cross multiply
    129,762.64x = 179,105.07 × 73,206.82
  4. Step 4: Simplify right side
    129,762.64x = 13,111,712,620.58
  5. Step 5: Solve for x
    x = 13,111,712,620.58/129,762.64
  6. Step 6: Final answer
    x = 101,043.82

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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.