Home / 99,374.26-137,124.02-67,178.92

Finding the Fourth Proportional to 99,374.26, 137,124.02 and 67,178.92

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Solution

The fourth proportional to 99,374.26, 137,124.02 and 67,178.92 is: 92,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,374.26 : 137,124.02 = 67,178.92 : x
  2. Step 2: Convert to fraction form
    99,374.26/137,124.02 = 67,178.92/x
  3. Step 3: Cross multiply
    99,374.26x = 137,124.02 × 67,178.92
  4. Step 4: Simplify right side
    99,374.26x = 9,211,843,651.90
  5. Step 5: Solve for x
    x = 9,211,843,651.90/99,374.26
  6. Step 6: Final answer
    x = 92,698.49

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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.