Home / 136,636.47-188,574.78-80,047.84

Finding the Fourth Proportional to 136,636.47, 188,574.78 and 80,047.84

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Solution

The fourth proportional to 136,636.47, 188,574.78 and 80,047.84 is: 110,475.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,636.47 : 188,574.78 = 80,047.84 : x
  2. Step 2: Convert to fraction form
    136,636.47/188,574.78 = 80,047.84/x
  3. Step 3: Cross multiply
    136,636.47x = 188,574.78 × 80,047.84
  4. Step 4: Simplify right side
    136,636.47x = 15,095,003,817.48
  5. Step 5: Solve for x
    x = 15,095,003,817.48/136,636.47
  6. Step 6: Final answer
    x = 110,475.66

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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.