Home / 129,812.63-179,141.45-70,196.63

Finding the Fourth Proportional to 129,812.63, 179,141.45 and 70,196.63

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Solution

The fourth proportional to 129,812.63, 179,141.45 and 70,196.63 is: 96,871.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,812.63 : 179,141.45 = 70,196.63 : x
  2. Step 2: Convert to fraction form
    129,812.63/179,141.45 = 70,196.63/x
  3. Step 3: Cross multiply
    129,812.63x = 179,141.45 × 70,196.63
  4. Step 4: Simplify right side
    129,812.63x = 12,575,124,836.62
  5. Step 5: Solve for x
    x = 12,575,124,836.62/129,812.63
  6. Step 6: Final answer
    x = 96,871.35

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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.