Home / 129,824.80-179,158.16-70,208.80

Finding the Fourth Proportional to 129,824.80, 179,158.16 and 70,208.80

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Solution

The fourth proportional to 129,824.80, 179,158.16 and 70,208.80 is: 96,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,824.80 : 179,158.16 = 70,208.80 : x
  2. Step 2: Convert to fraction form
    129,824.80/179,158.16 = 70,208.80/x
  3. Step 3: Cross multiply
    129,824.80x = 179,158.16 × 70,208.80
  4. Step 4: Simplify right side
    129,824.80x = 12,578,479,423.81
  5. Step 5: Solve for x
    x = 12,578,479,423.81/129,824.80
  6. Step 6: Final answer
    x = 96,888.11

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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.