Home / 128,577.65-192,897.27-53,656.12

Finding the Fourth Proportional to 128,577.65, 192,897.27 and 53,656.12

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Solution

The fourth proportional to 128,577.65, 192,897.27 and 53,656.12 is: 80,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,577.65 : 192,897.27 = 53,656.12 : x
  2. Step 2: Convert to fraction form
    128,577.65/192,897.27 = 53,656.12/x
  3. Step 3: Cross multiply
    128,577.65x = 192,897.27 × 53,656.12
  4. Step 4: Simplify right side
    128,577.65x = 10,350,119,066.79
  5. Step 5: Solve for x
    x = 10,350,119,066.79/128,577.65
  6. Step 6: Final answer
    x = 80,497.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.