Home / 129,740.68-179,041.62-70,124.68

Finding the Fourth Proportional to 129,740.68, 179,041.62 and 70,124.68

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Solution

The fourth proportional to 129,740.68, 179,041.62 and 70,124.68 is: 96,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,740.68 : 179,041.62 = 70,124.68 : x
  2. Step 2: Convert to fraction form
    129,740.68/179,041.62 = 70,124.68/x
  3. Step 3: Cross multiply
    129,740.68x = 179,041.62 × 70,124.68
  4. Step 4: Simplify right side
    129,740.68x = 12,555,236,309.18
  5. Step 5: Solve for x
    x = 12,555,236,309.18/129,740.68
  6. Step 6: Final answer
    x = 96,771.78

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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.