Home / 355,171.12-532,966.86-130,689.19

Finding the Fourth Proportional to 355,171.12, 532,966.86 and 130,689.19

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Solution

The fourth proportional to 355,171.12, 532,966.86 and 130,689.19 is: 196,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,171.12 : 532,966.86 = 130,689.19 : x
  2. Step 2: Convert to fraction form
    355,171.12/532,966.86 = 130,689.19/x
  3. Step 3: Cross multiply
    355,171.12x = 532,966.86 × 130,689.19
  4. Step 4: Simplify right side
    355,171.12x = 69,653,006,576.80
  5. Step 5: Solve for x
    x = 69,653,006,576.80/355,171.12
  6. Step 6: Final answer
    x = 196,111.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.