Home / 127,140.37-190,710.56-99,081.42

Finding the Fourth Proportional to 127,140.37, 190,710.56 and 99,081.42

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Solution

The fourth proportional to 127,140.37, 190,710.56 and 99,081.42 is: 148,622.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.37 : 190,710.56 = 99,081.42 : x
  2. Step 2: Convert to fraction form
    127,140.37/190,710.56 = 99,081.42/x
  3. Step 3: Cross multiply
    127,140.37x = 190,710.56 × 99,081.42
  4. Step 4: Simplify right side
    127,140.37x = 18,895,872,675.04
  5. Step 5: Solve for x
    x = 18,895,872,675.04/127,140.37
  6. Step 6: Final answer
    x = 148,622.13

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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.