Home / 129,981.51-179,377.47-73,392.75

Finding the Fourth Proportional to 129,981.51, 179,377.47 and 73,392.75

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Solution

The fourth proportional to 129,981.51, 179,377.47 and 73,392.75 is: 101,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.51 : 179,377.47 = 73,392.75 : x
  2. Step 2: Convert to fraction form
    129,981.51/179,377.47 = 73,392.75/x
  3. Step 3: Cross multiply
    129,981.51x = 179,377.47 × 73,392.75
  4. Step 4: Simplify right side
    129,981.51x = 13,165,005,811.34
  5. Step 5: Solve for x
    x = 13,165,005,811.34/129,981.51
  6. Step 6: Final answer
    x = 101,283.68

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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.