Home / 137,274.18-189,340.71-125,980.15

Finding the Fourth Proportional to 137,274.18, 189,340.71 and 125,980.15

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Solution

The fourth proportional to 137,274.18, 189,340.71 and 125,980.15 is: 173,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,274.18 : 189,340.71 = 125,980.15 : x
  2. Step 2: Convert to fraction form
    137,274.18/189,340.71 = 125,980.15/x
  3. Step 3: Cross multiply
    137,274.18x = 189,340.71 × 125,980.15
  4. Step 4: Simplify right side
    137,274.18x = 23,853,169,470.30
  5. Step 5: Solve for x
    x = 23,853,169,470.30/137,274.18
  6. Step 6: Final answer
    x = 173,762.98

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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.