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Finding the Fourth Proportional to 130,230, 179,717.48 and 70,614

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Solution

The fourth proportional to 130,230, 179,717.48 and 70,614 is: 97,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,230 : 179,717.48 = 70,614 : x
  2. Step 2: Convert to fraction form
    130,230/179,717.48 = 70,614/x
  3. Step 3: Cross multiply
    130,230x = 179,717.48 × 70,614
  4. Step 4: Simplify right side
    130,230x = 12,690,570,132.72
  5. Step 5: Solve for x
    x = 12,690,570,132.72/130,230
  6. Step 6: Final answer
    x = 97,447.36

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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.