Home / 128,600.01-177,514.59-104,685.16

Finding the Fourth Proportional to 128,600.01, 177,514.59 and 104,685.16

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Solution

The fourth proportional to 128,600.01, 177,514.59 and 104,685.16 is: 144,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,600.01 : 177,514.59 = 104,685.16 : x
  2. Step 2: Convert to fraction form
    128,600.01/177,514.59 = 104,685.16/x
  3. Step 3: Cross multiply
    128,600.01x = 177,514.59 × 104,685.16
  4. Step 4: Simplify right side
    128,600.01x = 18,583,143,256.48
  5. Step 5: Solve for x
    x = 18,583,143,256.48/128,600.01
  6. Step 6: Final answer
    x = 144,503.44

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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.