Home / 136,995.04-189,049.60-76,566.18

Finding the Fourth Proportional to 136,995.04, 189,049.60 and 76,566.18

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Solution

The fourth proportional to 136,995.04, 189,049.60 and 76,566.18 is: 105,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,995.04 : 189,049.60 = 76,566.18 : x
  2. Step 2: Convert to fraction form
    136,995.04/189,049.60 = 76,566.18/x
  3. Step 3: Cross multiply
    136,995.04x = 189,049.60 × 76,566.18
  4. Step 4: Simplify right side
    136,995.04x = 14,474,805,702.53
  5. Step 5: Solve for x
    x = 14,474,805,702.53/136,995.04
  6. Step 6: Final answer
    x = 105,659.34

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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.