Home / 147,872.91-203,852.21-105,357.63

Finding the Fourth Proportional to 147,872.91, 203,852.21 and 105,357.63

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Solution

The fourth proportional to 147,872.91, 203,852.21 and 105,357.63 is: 145,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,872.91 : 203,852.21 = 105,357.63 : x
  2. Step 2: Convert to fraction form
    147,872.91/203,852.21 = 105,357.63/x
  3. Step 3: Cross multiply
    147,872.91x = 203,852.21 × 105,357.63
  4. Step 4: Simplify right side
    147,872.91x = 21,477,385,189.07
  5. Step 5: Solve for x
    x = 21,477,385,189.07/147,872.91
  6. Step 6: Final answer
    x = 145,242.19

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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.