Home / 131,429.10-197,143.65-130,046.70

Finding the Fourth Proportional to 131,429.10, 197,143.65 and 130,046.70

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Solution

The fourth proportional to 131,429.10, 197,143.65 and 130,046.70 is: 195,070.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.10 : 197,143.65 = 130,046.70 : x
  2. Step 2: Convert to fraction form
    131,429.10/197,143.65 = 130,046.70/x
  3. Step 3: Cross multiply
    131,429.10x = 197,143.65 × 130,046.70
  4. Step 4: Simplify right side
    131,429.10x = 25,637,881,108.46
  5. Step 5: Solve for x
    x = 25,637,881,108.46/131,429.10
  6. Step 6: Final answer
    x = 195,070.05

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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.