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Finding the Fourth Proportional to 127,276.88, 175,639.56 and 70,686.32

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Solution

The fourth proportional to 127,276.88, 175,639.56 and 70,686.32 is: 97,545.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,276.88 : 175,639.56 = 70,686.32 : x
  2. Step 2: Convert to fraction form
    127,276.88/175,639.56 = 70,686.32/x
  3. Step 3: Cross multiply
    127,276.88x = 175,639.56 × 70,686.32
  4. Step 4: Simplify right side
    127,276.88x = 12,415,314,142.82
  5. Step 5: Solve for x
    x = 12,415,314,142.82/127,276.88
  6. Step 6: Final answer
    x = 97,545.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.