Home / 99,619.58-137,475.06-56,599.14

Finding the Fourth Proportional to 99,619.58, 137,475.06 and 56,599.14

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Solution

The fourth proportional to 99,619.58, 137,475.06 and 56,599.14 is: 78,106.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,619.58 : 137,475.06 = 56,599.14 : x
  2. Step 2: Convert to fraction form
    99,619.58/137,475.06 = 56,599.14/x
  3. Step 3: Cross multiply
    99,619.58x = 137,475.06 × 56,599.14
  4. Step 4: Simplify right side
    99,619.58x = 7,780,970,167.45
  5. Step 5: Solve for x
    x = 7,780,970,167.45/99,619.58
  6. Step 6: Final answer
    x = 78,106.84

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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.