Home / 130,855.80-196,342.02-47,730.36

Finding the Fourth Proportional to 130,855.80, 196,342.02 and 47,730.36

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Solution

The fourth proportional to 130,855.80, 196,342.02 and 47,730.36 is: 71,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,855.80 : 196,342.02 = 47,730.36 : x
  2. Step 2: Convert to fraction form
    130,855.80/196,342.02 = 47,730.36/x
  3. Step 3: Cross multiply
    130,855.80x = 196,342.02 × 47,730.36
  4. Step 4: Simplify right side
    130,855.80x = 9,371,475,297.73
  5. Step 5: Solve for x
    x = 9,371,475,297.73/130,855.80
  6. Step 6: Final answer
    x = 71,616.81

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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.