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Finding the Fourth Proportional to 130,099, 179,536.62 and 70,483

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Solution

The fourth proportional to 130,099, 179,536.62 and 70,483 is: 97,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,099 : 179,536.62 = 70,483 : x
  2. Step 2: Convert to fraction form
    130,099/179,536.62 = 70,483/x
  3. Step 3: Cross multiply
    130,099x = 179,536.62 × 70,483
  4. Step 4: Simplify right side
    130,099x = 12,654,279,587.46
  5. Step 5: Solve for x
    x = 12,654,279,587.46/130,099
  6. Step 6: Final answer
    x = 97,266.54

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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.