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Finding the Fourth Proportional to 130,100, 179,538 and 70,484

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Solution

The fourth proportional to 130,100, 179,538 and 70,484 is: 97,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,100 : 179,538 = 70,484 : x
  2. Step 2: Convert to fraction form
    130,100/179,538 = 70,484/x
  3. Step 3: Cross multiply
    130,100x = 179,538 × 70,484
  4. Step 4: Simplify right side
    130,100x = 12,654,556,392
  5. Step 5: Solve for x
    x = 12,654,556,392/130,100
  6. Step 6: Final answer
    x = 97,267.92

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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.