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Finding the Fourth Proportional to 170,419, 235,088.76 and 130,062.48

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Solution

The fourth proportional to 170,419, 235,088.76 and 130,062.48 is: 179,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,419 : 235,088.76 = 130,062.48 : x
  2. Step 2: Convert to fraction form
    170,419/235,088.76 = 130,062.48/x
  3. Step 3: Cross multiply
    170,419x = 235,088.76 × 130,062.48
  4. Step 4: Simplify right side
    170,419x = 30,576,227,145.72
  5. Step 5: Solve for x
    x = 30,576,227,145.72/170,419
  6. Step 6: Final answer
    x = 179,417.95

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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.