Home / 421,024.02-631,635.33-136,713.66

Finding the Fourth Proportional to 421,024.02, 631,635.33 and 136,713.66

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Solution

The fourth proportional to 421,024.02, 631,635.33 and 136,713.66 is: 205,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,024.02 : 631,635.33 = 136,713.66 : x
  2. Step 2: Convert to fraction form
    421,024.02/631,635.33 = 136,713.66/x
  3. Step 3: Cross multiply
    421,024.02x = 631,635.33 × 136,713.66
  4. Step 4: Simplify right side
    421,024.02x = 86,353,177,749.61
  5. Step 5: Solve for x
    x = 86,353,177,749.61/421,024.02
  6. Step 6: Final answer
    x = 205,102.73

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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.