Home / 137,250.02-189,409.03-76,819.11

Finding the Fourth Proportional to 137,250.02, 189,409.03 and 76,819.11

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Solution

The fourth proportional to 137,250.02, 189,409.03 and 76,819.11 is: 106,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,250.02 : 189,409.03 = 76,819.11 : x
  2. Step 2: Convert to fraction form
    137,250.02/189,409.03 = 76,819.11/x
  3. Step 3: Cross multiply
    137,250.02x = 189,409.03 × 76,819.11
  4. Step 4: Simplify right side
    137,250.02x = 14,550,231,779.42
  5. Step 5: Solve for x
    x = 14,550,231,779.42/137,250.02
  6. Step 6: Final answer
    x = 106,012.61

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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.