Home / 129,933.47-194,900.21-31,437.47

Finding the Fourth Proportional to 129,933.47, 194,900.21 and 31,437.47

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Solution

The fourth proportional to 129,933.47, 194,900.21 and 31,437.47 is: 47,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,933.47 : 194,900.21 = 31,437.47 : x
  2. Step 2: Convert to fraction form
    129,933.47/194,900.21 = 31,437.47/x
  3. Step 3: Cross multiply
    129,933.47x = 194,900.21 × 31,437.47
  4. Step 4: Simplify right side
    129,933.47x = 6,127,170,070.71
  5. Step 5: Solve for x
    x = 6,127,170,070.71/129,933.47
  6. Step 6: Final answer
    x = 47,156.21

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1.5x scale

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.