Home / 153,420.24-211,610.87-102,407.25

Finding the Fourth Proportional to 153,420.24, 211,610.87 and 102,407.25

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Solution

The fourth proportional to 153,420.24, 211,610.87 and 102,407.25 is: 141,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,420.24 : 211,610.87 = 102,407.25 : x
  2. Step 2: Convert to fraction form
    153,420.24/211,610.87 = 102,407.25/x
  3. Step 3: Cross multiply
    153,420.24x = 211,610.87 × 102,407.25
  4. Step 4: Simplify right side
    153,420.24x = 21,670,486,754.77
  5. Step 5: Solve for x
    x = 21,670,486,754.77/153,420.24
  6. Step 6: Final answer
    x = 141,249.20

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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.