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Finding the Fourth Proportional to 127,265.60, 190,840.80 and 57,108.80

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Solution

The fourth proportional to 127,265.60, 190,840.80 and 57,108.80 is: 85,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,265.60 : 190,840.80 = 57,108.80 : x
  2. Step 2: Convert to fraction form
    127,265.60/190,840.80 = 57,108.80/x
  3. Step 3: Cross multiply
    127,265.60x = 190,840.80 × 57,108.80
  4. Step 4: Simplify right side
    127,265.60x = 10,898,689,079.04
  5. Step 5: Solve for x
    x = 10,898,689,079.04/127,265.60
  6. Step 6: Final answer
    x = 85,637.35

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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.