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Finding the Fourth Proportional to 130,062, 179,485.56 and 70,446

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Solution

The fourth proportional to 130,062, 179,485.56 and 70,446 is: 97,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,062 : 179,485.56 = 70,446 : x
  2. Step 2: Convert to fraction form
    130,062/179,485.56 = 70,446/x
  3. Step 3: Cross multiply
    130,062x = 179,485.56 × 70,446
  4. Step 4: Simplify right side
    130,062x = 12,644,039,759.76
  5. Step 5: Solve for x
    x = 12,644,039,759.76/130,062
  6. Step 6: Final answer
    x = 97,215.48

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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.