Home / 137,295.04-189,445.14-76,868.20

Finding the Fourth Proportional to 137,295.04, 189,445.14 and 76,868.20

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Solution

The fourth proportional to 137,295.04, 189,445.14 and 76,868.20 is: 106,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,295.04 : 189,445.14 = 76,868.20 : x
  2. Step 2: Convert to fraction form
    137,295.04/189,445.14 = 76,868.20/x
  3. Step 3: Cross multiply
    137,295.04x = 189,445.14 × 76,868.20
  4. Step 4: Simplify right side
    137,295.04x = 14,562,306,910.55
  5. Step 5: Solve for x
    x = 14,562,306,910.55/137,295.04
  6. Step 6: Final answer
    x = 106,065.79

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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.