Home / 172,172.32-237,529.46-99,561.78

Finding the Fourth Proportional to 172,172.32, 237,529.46 and 99,561.78

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Solution

The fourth proportional to 172,172.32, 237,529.46 and 99,561.78 is: 137,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,172.32 : 237,529.46 = 99,561.78 : x
  2. Step 2: Convert to fraction form
    172,172.32/237,529.46 = 99,561.78/x
  3. Step 3: Cross multiply
    172,172.32x = 237,529.46 × 99,561.78
  4. Step 4: Simplify right side
    172,172.32x = 23,648,856,088.94
  5. Step 5: Solve for x
    x = 23,648,856,088.94/172,172.32
  6. Step 6: Final answer
    x = 137,355.74

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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.