Home / 187,486.37-258,731.02-105,831.81

Finding the Fourth Proportional to 187,486.37, 258,731.02 and 105,831.81

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Solution

The fourth proportional to 187,486.37, 258,731.02 and 105,831.81 is: 146,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,486.37 : 258,731.02 = 105,831.81 : x
  2. Step 2: Convert to fraction form
    187,486.37/258,731.02 = 105,831.81/x
  3. Step 3: Cross multiply
    187,486.37x = 258,731.02 × 105,831.81
  4. Step 4: Simplify right side
    187,486.37x = 27,381,971,885.17
  5. Step 5: Solve for x
    x = 27,381,971,885.17/187,486.37
  6. Step 6: Final answer
    x = 146,047.80

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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.