Home / 99,435.88-137,207.46-56,996.20

Finding the Fourth Proportional to 99,435.88, 137,207.46 and 56,996.20

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Solution

The fourth proportional to 99,435.88, 137,207.46 and 56,996.20 is: 78,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,435.88 : 137,207.46 = 56,996.20 : x
  2. Step 2: Convert to fraction form
    99,435.88/137,207.46 = 56,996.20/x
  3. Step 3: Cross multiply
    99,435.88x = 137,207.46 × 56,996.20
  4. Step 4: Simplify right side
    99,435.88x = 7,820,303,831.65
  5. Step 5: Solve for x
    x = 7,820,303,831.65/99,435.88
  6. Step 6: Final answer
    x = 78,646.70

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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.