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Finding the Fourth Proportional to 130,119, 179,564.36 and 70,503

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Solution

The fourth proportional to 130,119, 179,564.36 and 70,503 is: 97,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,119 : 179,564.36 = 70,503 : x
  2. Step 2: Convert to fraction form
    130,119/179,564.36 = 70,503/x
  3. Step 3: Cross multiply
    130,119x = 179,564.36 × 70,503
  4. Step 4: Simplify right side
    130,119x = 12,659,826,073.08
  5. Step 5: Solve for x
    x = 12,659,826,073.08/130,119
  6. Step 6: Final answer
    x = 97,294.22

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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.