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Finding the Fourth Proportional to 130,349, 179,881.62 and 70,733

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Solution

The fourth proportional to 130,349, 179,881.62 and 70,733 is: 97,611.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,349 : 179,881.62 = 70,733 : x
  2. Step 2: Convert to fraction form
    130,349/179,881.62 = 70,733/x
  3. Step 3: Cross multiply
    130,349x = 179,881.62 × 70,733
  4. Step 4: Simplify right side
    130,349x = 12,723,566,627.46
  5. Step 5: Solve for x
    x = 12,723,566,627.46/130,349
  6. Step 6: Final answer
    x = 97,611.54

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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.