Home / 131,638.07-197,278.15-55,673.45

Finding the Fourth Proportional to 131,638.07, 197,278.15 and 55,673.45

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Solution

The fourth proportional to 131,638.07, 197,278.15 and 55,673.45 is: 83,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,638.07 : 197,278.15 = 55,673.45 : x
  2. Step 2: Convert to fraction form
    131,638.07/197,278.15 = 55,673.45/x
  3. Step 3: Cross multiply
    131,638.07x = 197,278.15 × 55,673.45
  4. Step 4: Simplify right side
    131,638.07x = 10,983,155,220.12
  5. Step 5: Solve for x
    x = 10,983,155,220.12/131,638.07
  6. Step 6: Final answer
    x = 83,434.49

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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.