Home / 127,948.60-191,921.10-57,827.80

Finding the Fourth Proportional to 127,948.60, 191,921.10 and 57,827.80

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Solution

The fourth proportional to 127,948.60, 191,921.10 and 57,827.80 is: 86,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,948.60 : 191,921.10 = 57,827.80 : x
  2. Step 2: Convert to fraction form
    127,948.60/191,921.10 = 57,827.80/x
  3. Step 3: Cross multiply
    127,948.60x = 191,921.10 × 57,827.80
  4. Step 4: Simplify right side
    127,948.60x = 11,098,374,986.58
  5. Step 5: Solve for x
    x = 11,098,374,986.58/127,948.60
  6. Step 6: Final answer
    x = 86,740.89

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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.