Home / 130,948.08-196,434.24-42,180.72

Finding the Fourth Proportional to 130,948.08, 196,434.24 and 42,180.72

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Solution

The fourth proportional to 130,948.08, 196,434.24 and 42,180.72 is: 63,274.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,948.08 : 196,434.24 = 42,180.72 : x
  2. Step 2: Convert to fraction form
    130,948.08/196,434.24 = 42,180.72/x
  3. Step 3: Cross multiply
    130,948.08x = 196,434.24 × 42,180.72
  4. Step 4: Simplify right side
    130,948.08x = 8,285,737,675.85
  5. Step 5: Solve for x
    x = 8,285,737,675.85/130,948.08
  6. Step 6: Final answer
    x = 63,274.98

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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.