Home / 149,830.76-206,772.73-86,168.60

Finding the Fourth Proportional to 149,830.76, 206,772.73 and 86,168.60

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Solution

The fourth proportional to 149,830.76, 206,772.73 and 86,168.60 is: 118,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,830.76 : 206,772.73 = 86,168.60 : x
  2. Step 2: Convert to fraction form
    149,830.76/206,772.73 = 86,168.60/x
  3. Step 3: Cross multiply
    149,830.76x = 206,772.73 × 86,168.60
  4. Step 4: Simplify right side
    149,830.76x = 17,817,316,963.79
  5. Step 5: Solve for x
    x = 17,817,316,963.79/149,830.76
  6. Step 6: Final answer
    x = 118,916.29

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1.5x scale

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.