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Finding the Fourth Proportional to 127,071.54, 175,359.60 and 70,486.56

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Solution

The fourth proportional to 127,071.54, 175,359.60 and 70,486.56 is: 97,271.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,071.54 : 175,359.60 = 70,486.56 : x
  2. Step 2: Convert to fraction form
    127,071.54/175,359.60 = 70,486.56/x
  3. Step 3: Cross multiply
    127,071.54x = 175,359.60 × 70,486.56
  4. Step 4: Simplify right side
    127,071.54x = 12,360,494,966.98
  5. Step 5: Solve for x
    x = 12,360,494,966.98/127,071.54
  6. Step 6: Final answer
    x = 97,271.94

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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.