Home / 155,130.08-214,067.60-87,125.36

Finding the Fourth Proportional to 155,130.08, 214,067.60 and 87,125.36

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Solution

The fourth proportional to 155,130.08, 214,067.60 and 87,125.36 is: 120,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,130.08 : 214,067.60 = 87,125.36 : x
  2. Step 2: Convert to fraction form
    155,130.08/214,067.60 = 87,125.36/x
  3. Step 3: Cross multiply
    155,130.08x = 214,067.60 × 87,125.36
  4. Step 4: Simplify right side
    155,130.08x = 18,650,716,714.34
  5. Step 5: Solve for x
    x = 18,650,716,714.34/155,130.08
  6. Step 6: Final answer
    x = 120,226.31

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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.