Home / 160,335.45-221,259.51-87,738.05

Finding the Fourth Proportional to 160,335.45, 221,259.51 and 87,738.05

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Solution

The fourth proportional to 160,335.45, 221,259.51 and 87,738.05 is: 121,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,335.45 : 221,259.51 = 87,738.05 : x
  2. Step 2: Convert to fraction form
    160,335.45/221,259.51 = 87,738.05/x
  3. Step 3: Cross multiply
    160,335.45x = 221,259.51 × 87,738.05
  4. Step 4: Simplify right side
    160,335.45x = 19,412,878,297.07
  5. Step 5: Solve for x
    x = 19,412,878,297.07/160,335.45
  6. Step 6: Final answer
    x = 121,076.64

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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.