Home / 99,725.45-137,610.50-56,117.23

Finding the Fourth Proportional to 99,725.45, 137,610.50 and 56,117.23

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Solution

The fourth proportional to 99,725.45, 137,610.50 and 56,117.23 is: 77,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,725.45 : 137,610.50 = 56,117.23 : x
  2. Step 2: Convert to fraction form
    99,725.45/137,610.50 = 56,117.23/x
  3. Step 3: Cross multiply
    99,725.45x = 137,610.50 × 56,117.23
  4. Step 4: Simplify right side
    99,725.45x = 7,722,320,544.02
  5. Step 5: Solve for x
    x = 7,722,320,544.02/99,725.45
  6. Step 6: Final answer
    x = 77,435.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.