Home / 129,935.63-194,903.45-31,439.63

Finding the Fourth Proportional to 129,935.63, 194,903.45 and 31,439.63

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Solution

The fourth proportional to 129,935.63, 194,903.45 and 31,439.63 is: 47,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,935.63 : 194,903.45 = 31,439.63 : x
  2. Step 2: Convert to fraction form
    129,935.63/194,903.45 = 31,439.63/x
  3. Step 3: Cross multiply
    129,935.63x = 194,903.45 × 31,439.63
  4. Step 4: Simplify right side
    129,935.63x = 6,127,691,222.01
  5. Step 5: Solve for x
    x = 6,127,691,222.01/129,935.63
  6. Step 6: Final answer
    x = 47,159.44

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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.