Home / 144,688.16-199,665.08-80,154.78

Finding the Fourth Proportional to 144,688.16, 199,665.08 and 80,154.78

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Solution

The fourth proportional to 144,688.16, 199,665.08 and 80,154.78 is: 110,611.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688.16 : 199,665.08 = 80,154.78 : x
  2. Step 2: Convert to fraction form
    144,688.16/199,665.08 = 80,154.78/x
  3. Step 3: Cross multiply
    144,688.16x = 199,665.08 × 80,154.78
  4. Step 4: Simplify right side
    144,688.16x = 16,004,110,561.08
  5. Step 5: Solve for x
    x = 16,004,110,561.08/144,688.16
  6. Step 6: Final answer
    x = 110,611.06

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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.