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Finding the Fourth Proportional to 185,706.18, 278,669.94 and 67,386.74

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Solution

The fourth proportional to 185,706.18, 278,669.94 and 67,386.74 is: 101,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,706.18 : 278,669.94 = 67,386.74 : x
  2. Step 2: Convert to fraction form
    185,706.18/278,669.94 = 67,386.74/x
  3. Step 3: Cross multiply
    185,706.18x = 278,669.94 × 67,386.74
  4. Step 4: Simplify right side
    185,706.18x = 18,778,658,792.60
  5. Step 5: Solve for x
    x = 18,778,658,792.60/185,706.18
  6. Step 6: Final answer
    x = 101,120.27

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1.5x scale

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.