Home / 131,507.40-197,309.70-52,678.20

Finding the Fourth Proportional to 131,507.40, 197,309.70 and 52,678.20

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Solution

The fourth proportional to 131,507.40, 197,309.70 and 52,678.20 is: 79,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,507.40 : 197,309.70 = 52,678.20 : x
  2. Step 2: Convert to fraction form
    131,507.40/197,309.70 = 52,678.20/x
  3. Step 3: Cross multiply
    131,507.40x = 197,309.70 × 52,678.20
  4. Step 4: Simplify right side
    131,507.40x = 10,393,919,838.54
  5. Step 5: Solve for x
    x = 10,393,919,838.54/131,507.40
  6. Step 6: Final answer
    x = 79,036.77

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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.