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Finding the Fourth Proportional to 130,146, 179,601.60 and 70,530

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Solution

The fourth proportional to 130,146, 179,601.60 and 70,530 is: 97,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,146 : 179,601.60 = 70,530 : x
  2. Step 2: Convert to fraction form
    130,146/179,601.60 = 70,530/x
  3. Step 3: Cross multiply
    130,146x = 179,601.60 × 70,530
  4. Step 4: Simplify right side
    130,146x = 12,667,300,848
  5. Step 5: Solve for x
    x = 12,667,300,848/130,146
  6. Step 6: Final answer
    x = 97,331.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.