Home / 127,013.55-190,146.61-84,788.91

Finding the Fourth Proportional to 127,013.55, 190,146.61 and 84,788.91

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Solution

The fourth proportional to 127,013.55, 190,146.61 and 84,788.91 is: 126,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,013.55 : 190,146.61 = 84,788.91 : x
  2. Step 2: Convert to fraction form
    127,013.55/190,146.61 = 84,788.91/x
  3. Step 3: Cross multiply
    127,013.55x = 190,146.61 × 84,788.91
  4. Step 4: Simplify right side
    127,013.55x = 16,122,323,802.10
  5. Step 5: Solve for x
    x = 16,122,323,802.10/127,013.55
  6. Step 6: Final answer
    x = 126,933.89

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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.