Home / 137,630.61-189,970.52-89,891.24

Finding the Fourth Proportional to 137,630.61, 189,970.52 and 89,891.24

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Solution

The fourth proportional to 137,630.61, 189,970.52 and 89,891.24 is: 124,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,630.61 : 189,970.52 = 89,891.24 : x
  2. Step 2: Convert to fraction form
    137,630.61/189,970.52 = 89,891.24/x
  3. Step 3: Cross multiply
    137,630.61x = 189,970.52 × 89,891.24
  4. Step 4: Simplify right side
    137,630.61x = 17,076,684,206.94
  5. Step 5: Solve for x
    x = 17,076,684,206.94/137,630.61
  6. Step 6: Final answer
    x = 124,076.21

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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.