Home / 136,320.07-188,279.15-90,919.16

Finding the Fourth Proportional to 136,320.07, 188,279.15 and 90,919.16

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Solution

The fourth proportional to 136,320.07, 188,279.15 and 90,919.16 is: 125,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,320.07 : 188,279.15 = 90,919.16 : x
  2. Step 2: Convert to fraction form
    136,320.07/188,279.15 = 90,919.16/x
  3. Step 3: Cross multiply
    136,320.07x = 188,279.15 × 90,919.16
  4. Step 4: Simplify right side
    136,320.07x = 17,118,182,163.51
  5. Step 5: Solve for x
    x = 17,118,182,163.51/136,320.07
  6. Step 6: Final answer
    x = 125,573.45

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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.