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Finding the Fourth Proportional to 169,983.60, 254,975.40 and 139,916.40

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Solution

The fourth proportional to 169,983.60, 254,975.40 and 139,916.40 is: 209,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,983.60 : 254,975.40 = 139,916.40 : x
  2. Step 2: Convert to fraction form
    169,983.60/254,975.40 = 139,916.40/x
  3. Step 3: Cross multiply
    169,983.60x = 254,975.40 × 139,916.40
  4. Step 4: Simplify right side
    169,983.60x = 35,675,240,056.56
  5. Step 5: Solve for x
    x = 35,675,240,056.56/169,983.60
  6. Step 6: Final answer
    x = 209,874.60

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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.