Home / 143,512.86-215,162.06-99,012.63

Finding the Fourth Proportional to 143,512.86, 215,162.06 and 99,012.63

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Solution

The fourth proportional to 143,512.86, 215,162.06 and 99,012.63 is: 148,444.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,512.86 : 215,162.06 = 99,012.63 : x
  2. Step 2: Convert to fraction form
    143,512.86/215,162.06 = 99,012.63/x
  3. Step 3: Cross multiply
    143,512.86x = 215,162.06 × 99,012.63
  4. Step 4: Simplify right side
    143,512.86x = 21,303,760,941.75
  5. Step 5: Solve for x
    x = 21,303,760,941.75/143,512.86
  6. Step 6: Final answer
    x = 148,444.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.