Home / 129,437.16-194,155.58-40,698.42

Finding the Fourth Proportional to 129,437.16, 194,155.58 and 40,698.42

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Solution

The fourth proportional to 129,437.16, 194,155.58 and 40,698.42 is: 61,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,437.16 : 194,155.58 = 40,698.42 : x
  2. Step 2: Convert to fraction form
    129,437.16/194,155.58 = 40,698.42/x
  3. Step 3: Cross multiply
    129,437.16x = 194,155.58 × 40,698.42
  4. Step 4: Simplify right side
    129,437.16x = 7,901,825,340.18
  5. Step 5: Solve for x
    x = 7,901,825,340.18/129,437.16
  6. Step 6: Final answer
    x = 61,047.58

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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.