Home / 153,502.20-211,719.87-102,490.43

Finding the Fourth Proportional to 153,502.20, 211,719.87 and 102,490.43

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Solution

The fourth proportional to 153,502.20, 211,719.87 and 102,490.43 is: 141,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,502.20 : 211,719.87 = 102,490.43 : x
  2. Step 2: Convert to fraction form
    153,502.20/211,719.87 = 102,490.43/x
  3. Step 3: Cross multiply
    153,502.20x = 211,719.87 × 102,490.43
  4. Step 4: Simplify right side
    153,502.20x = 21,699,259,457.24
  5. Step 5: Solve for x
    x = 21,699,259,457.24/153,502.20
  6. Step 6: Final answer
    x = 141,361.23

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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.