Home / 136,318.07-188,276.39-90,917.16

Finding the Fourth Proportional to 136,318.07, 188,276.39 and 90,917.16

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Solution

The fourth proportional to 136,318.07, 188,276.39 and 90,917.16 is: 125,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,318.07 : 188,276.39 = 90,917.16 : x
  2. Step 2: Convert to fraction form
    136,318.07/188,276.39 = 90,917.16/x
  3. Step 3: Cross multiply
    136,318.07x = 188,276.39 × 90,917.16
  4. Step 4: Simplify right side
    136,318.07x = 17,117,554,219.27
  5. Step 5: Solve for x
    x = 17,117,554,219.27/136,318.07
  6. Step 6: Final answer
    x = 125,570.70

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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.