Home / 132,616.78-183,009.36-72,186.38

Finding the Fourth Proportional to 132,616.78, 183,009.36 and 72,186.38

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Solution

The fourth proportional to 132,616.78, 183,009.36 and 72,186.38 is: 99,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,616.78 : 183,009.36 = 72,186.38 : x
  2. Step 2: Convert to fraction form
    132,616.78/183,009.36 = 72,186.38/x
  3. Step 3: Cross multiply
    132,616.78x = 183,009.36 × 72,186.38
  4. Step 4: Simplify right side
    132,616.78x = 13,210,782,430.78
  5. Step 5: Solve for x
    x = 13,210,782,430.78/132,616.78
  6. Step 6: Final answer
    x = 99,616.22

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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.