Home / 99,818.13-137,584.89-70,756.23

Finding the Fourth Proportional to 99,818.13, 137,584.89 and 70,756.23

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Solution

The fourth proportional to 99,818.13, 137,584.89 and 70,756.23 is: 97,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,818.13 : 137,584.89 = 70,756.23 : x
  2. Step 2: Convert to fraction form
    99,818.13/137,584.89 = 70,756.23/x
  3. Step 3: Cross multiply
    99,818.13x = 137,584.89 × 70,756.23
  4. Step 4: Simplify right side
    99,818.13x = 9,734,988,121.36
  5. Step 5: Solve for x
    x = 9,734,988,121.36/99,818.13
  6. Step 6: Final answer
    x = 97,527.25

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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.