Home / 127,835.60-191,753.40-71,848.40

Finding the Fourth Proportional to 127,835.60, 191,753.40 and 71,848.40

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Solution

The fourth proportional to 127,835.60, 191,753.40 and 71,848.40 is: 107,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,835.60 : 191,753.40 = 71,848.40 : x
  2. Step 2: Convert to fraction form
    127,835.60/191,753.40 = 71,848.40/x
  3. Step 3: Cross multiply
    127,835.60x = 191,753.40 × 71,848.40
  4. Step 4: Simplify right side
    127,835.60x = 13,777,174,984.56
  5. Step 5: Solve for x
    x = 13,777,174,984.56/127,835.60
  6. Step 6: Final answer
    x = 107,772.60

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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.