Home / 128,010.65-192,036.02-104,261.04

Finding the Fourth Proportional to 128,010.65, 192,036.02 and 104,261.04

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Solution

The fourth proportional to 128,010.65, 192,036.02 and 104,261.04 is: 156,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010.65 : 192,036.02 = 104,261.04 : x
  2. Step 2: Convert to fraction form
    128,010.65/192,036.02 = 104,261.04/x
  3. Step 3: Cross multiply
    128,010.65x = 192,036.02 × 104,261.04
  4. Step 4: Simplify right side
    128,010.65x = 20,021,874,641.36
  5. Step 5: Solve for x
    x = 20,021,874,641.36/128,010.65
  6. Step 6: Final answer
    x = 156,407.89

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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.