Home / 137,303.16-189,380.64-126,009.12

Finding the Fourth Proportional to 137,303.16, 189,380.64 and 126,009.12

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Solution

The fourth proportional to 137,303.16, 189,380.64 and 126,009.12 is: 173,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,303.16 : 189,380.64 = 126,009.12 : x
  2. Step 2: Convert to fraction form
    137,303.16/189,380.64 = 126,009.12/x
  3. Step 3: Cross multiply
    137,303.16x = 189,380.64 × 126,009.12
  4. Step 4: Simplify right side
    137,303.16x = 23,863,687,791.44
  5. Step 5: Solve for x
    x = 23,863,687,791.44/137,303.16
  6. Step 6: Final answer
    x = 173,802.90

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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.