Home / 187,831.40-282,038.70-109,099.40

Finding the Fourth Proportional to 187,831.40, 282,038.70 and 109,099.40

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Solution

The fourth proportional to 187,831.40, 282,038.70 and 109,099.40 is: 163,818.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,831.40 : 282,038.70 = 109,099.40 : x
  2. Step 2: Convert to fraction form
    187,831.40/282,038.70 = 109,099.40/x
  3. Step 3: Cross multiply
    187,831.40x = 282,038.70 × 109,099.40
  4. Step 4: Simplify right side
    187,831.40x = 30,770,252,946.78
  5. Step 5: Solve for x
    x = 30,770,252,946.78/187,831.40
  6. Step 6: Final answer
    x = 163,818.47

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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.