Home / 138,318.30-207,477.45-130,007.70

Finding the Fourth Proportional to 138,318.30, 207,477.45 and 130,007.70

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Solution

The fourth proportional to 138,318.30, 207,477.45 and 130,007.70 is: 195,011.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,318.30 : 207,477.45 = 130,007.70 : x
  2. Step 2: Convert to fraction form
    138,318.30/207,477.45 = 130,007.70/x
  3. Step 3: Cross multiply
    138,318.30x = 207,477.45 × 130,007.70
  4. Step 4: Simplify right side
    138,318.30x = 26,973,666,076.37
  5. Step 5: Solve for x
    x = 26,973,666,076.37/138,318.30
  6. Step 6: Final answer
    x = 195,011.55

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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.