Home / 129,738.22-179,038.65-70,122.22

Finding the Fourth Proportional to 129,738.22, 179,038.65 and 70,122.22

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Solution

The fourth proportional to 129,738.22, 179,038.65 and 70,122.22 is: 96,768.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,738.22 : 179,038.65 = 70,122.22 : x
  2. Step 2: Convert to fraction form
    129,738.22/179,038.65 = 70,122.22/x
  3. Step 3: Cross multiply
    129,738.22x = 179,038.65 × 70,122.22
  4. Step 4: Simplify right side
    129,738.22x = 12,554,587,603.80
  5. Step 5: Solve for x
    x = 12,554,587,603.80/129,738.22
  6. Step 6: Final answer
    x = 96,768.61

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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.