Home / 158,816.42-219,167.10-87,201.08

Finding the Fourth Proportional to 158,816.42, 219,167.10 and 87,201.08

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Solution

The fourth proportional to 158,816.42, 219,167.10 and 87,201.08 is: 120,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,816.42 : 219,167.10 = 87,201.08 : x
  2. Step 2: Convert to fraction form
    158,816.42/219,167.10 = 87,201.08/x
  3. Step 3: Cross multiply
    158,816.42x = 219,167.10 × 87,201.08
  4. Step 4: Simplify right side
    158,816.42x = 19,111,607,820.47
  5. Step 5: Solve for x
    x = 19,111,607,820.47/158,816.42
  6. Step 6: Final answer
    x = 120,337.73

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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.