Home / 137,359.14-189,533.95-80,007.90

Finding the Fourth Proportional to 137,359.14, 189,533.95 and 80,007.90

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Solution

The fourth proportional to 137,359.14, 189,533.95 and 80,007.90 is: 110,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,359.14 : 189,533.95 = 80,007.90 : x
  2. Step 2: Convert to fraction form
    137,359.14/189,533.95 = 80,007.90/x
  3. Step 3: Cross multiply
    137,359.14x = 189,533.95 × 80,007.90
  4. Step 4: Simplify right side
    137,359.14x = 15,164,213,318.21
  5. Step 5: Solve for x
    x = 15,164,213,318.21/137,359.14
  6. Step 6: Final answer
    x = 110,398.28

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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.