Home / 153,021.08-211,152.31-88,480.55

Finding the Fourth Proportional to 153,021.08, 211,152.31 and 88,480.55

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Solution

The fourth proportional to 153,021.08, 211,152.31 and 88,480.55 is: 122,093.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,021.08 : 211,152.31 = 88,480.55 : x
  2. Step 2: Convert to fraction form
    153,021.08/211,152.31 = 88,480.55/x
  3. Step 3: Cross multiply
    153,021.08x = 211,152.31 × 88,480.55
  4. Step 4: Simplify right side
    153,021.08x = 18,682,871,024.41
  5. Step 5: Solve for x
    x = 18,682,871,024.41/153,021.08
  6. Step 6: Final answer
    x = 122,093.45

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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.