Home / 137,014.95-189,080.56-80,426.32

Finding the Fourth Proportional to 137,014.95, 189,080.56 and 80,426.32

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Solution

The fourth proportional to 137,014.95, 189,080.56 and 80,426.32 is: 110,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,014.95 : 189,080.56 = 80,426.32 : x
  2. Step 2: Convert to fraction form
    137,014.95/189,080.56 = 80,426.32/x
  3. Step 3: Cross multiply
    137,014.95x = 189,080.56 × 80,426.32
  4. Step 4: Simplify right side
    137,014.95x = 15,207,053,624.34
  5. Step 5: Solve for x
    x = 15,207,053,624.34/137,014.95
  6. Step 6: Final answer
    x = 110,988.28

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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.