Home / 153,021.52-211,109.26-88,478.98

Finding the Fourth Proportional to 153,021.52, 211,109.26 and 88,478.98

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Solution

The fourth proportional to 153,021.52, 211,109.26 and 88,478.98 is: 122,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,021.52 : 211,109.26 = 88,478.98 : x
  2. Step 2: Convert to fraction form
    153,021.52/211,109.26 = 88,478.98/x
  3. Step 3: Cross multiply
    153,021.52x = 211,109.26 × 88,478.98
  4. Step 4: Simplify right side
    153,021.52x = 18,678,731,993.35
  5. Step 5: Solve for x
    x = 18,678,731,993.35/153,021.52
  6. Step 6: Final answer
    x = 122,066.05

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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.