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Finding the Fourth Proportional to 127,070, 175,356.60 and 70,493.12

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Solution

The fourth proportional to 127,070, 175,356.60 and 70,493.12 is: 97,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,070 : 175,356.60 = 70,493.12 : x
  2. Step 2: Convert to fraction form
    127,070/175,356.60 = 70,493.12/x
  3. Step 3: Cross multiply
    127,070x = 175,356.60 × 70,493.12
  4. Step 4: Simplify right side
    127,070x = 12,361,433,846.59
  5. Step 5: Solve for x
    x = 12,361,433,846.59/127,070
  6. Step 6: Final answer
    x = 97,280.51

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Why These Related Problems?

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