Home / 137,245.02-189,354.95-76,806.06

Finding the Fourth Proportional to 137,245.02, 189,354.95 and 76,806.06

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Solution

The fourth proportional to 137,245.02, 189,354.95 and 76,806.06 is: 105,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,245.02 : 189,354.95 = 76,806.06 : x
  2. Step 2: Convert to fraction form
    137,245.02/189,354.95 = 76,806.06/x
  3. Step 3: Cross multiply
    137,245.02x = 189,354.95 × 76,806.06
  4. Step 4: Simplify right side
    137,245.02x = 14,543,606,844.91
  5. Step 5: Solve for x
    x = 14,543,606,844.91/137,245.02
  6. Step 6: Final answer
    x = 105,968.20

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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.