Home / 129,737.50-179,037.75-70,121.50

Finding the Fourth Proportional to 129,737.50, 179,037.75 and 70,121.50

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Solution

The fourth proportional to 129,737.50, 179,037.75 and 70,121.50 is: 96,767.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,737.50 : 179,037.75 = 70,121.50 : x
  2. Step 2: Convert to fraction form
    129,737.50/179,037.75 = 70,121.50/x
  3. Step 3: Cross multiply
    129,737.50x = 179,037.75 × 70,121.50
  4. Step 4: Simplify right side
    129,737.50x = 12,554,395,586.63
  5. Step 5: Solve for x
    x = 12,554,395,586.63/129,737.50
  6. Step 6: Final answer
    x = 96,767.67

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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.