Home / 153,047.12-211,201.52-88,511.52

Finding the Fourth Proportional to 153,047.12, 211,201.52 and 88,511.52

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Solution

The fourth proportional to 153,047.12, 211,201.52 and 88,511.52 is: 122,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,047.12 : 211,201.52 = 88,511.52 : x
  2. Step 2: Convert to fraction form
    153,047.12/211,201.52 = 88,511.52/x
  3. Step 3: Cross multiply
    153,047.12x = 211,201.52 × 88,511.52
  4. Step 4: Simplify right side
    153,047.12x = 18,693,767,561.51
  5. Step 5: Solve for x
    x = 18,693,767,561.51/153,047.12
  6. Step 6: Final answer
    x = 122,143.87

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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.