Home / 137,293.02-189,442.40-76,866.20

Finding the Fourth Proportional to 137,293.02, 189,442.40 and 76,866.20

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Solution

The fourth proportional to 137,293.02, 189,442.40 and 76,866.20 is: 106,063.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,293.02 : 189,442.40 = 76,866.20 : x
  2. Step 2: Convert to fraction form
    137,293.02/189,442.40 = 76,866.20/x
  3. Step 3: Cross multiply
    137,293.02x = 189,442.40 × 76,866.20
  4. Step 4: Simplify right side
    137,293.02x = 14,561,717,406.88
  5. Step 5: Solve for x
    x = 14,561,717,406.88/137,293.02
  6. Step 6: Final answer
    x = 106,063.06

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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.