Home / 131,528.28-197,432.82-56,685.36

Finding the Fourth Proportional to 131,528.28, 197,432.82 and 56,685.36

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Solution

The fourth proportional to 131,528.28, 197,432.82 and 56,685.36 is: 85,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,528.28 : 197,432.82 = 56,685.36 : x
  2. Step 2: Convert to fraction form
    131,528.28/197,432.82 = 56,685.36/x
  3. Step 3: Cross multiply
    131,528.28x = 197,432.82 × 56,685.36
  4. Step 4: Simplify right side
    131,528.28x = 11,191,550,477.52
  5. Step 5: Solve for x
    x = 11,191,550,477.52/131,528.28
  6. Step 6: Final answer
    x = 85,088.55

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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.