Home / 151,916.85-209,644.07-83,938.41

Finding the Fourth Proportional to 151,916.85, 209,644.07 and 83,938.41

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Solution

The fourth proportional to 151,916.85, 209,644.07 and 83,938.41 is: 115,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,916.85 : 209,644.07 = 83,938.41 : x
  2. Step 2: Convert to fraction form
    151,916.85/209,644.07 = 83,938.41/x
  3. Step 3: Cross multiply
    151,916.85x = 209,644.07 × 83,938.41
  4. Step 4: Simplify right side
    151,916.85x = 17,597,189,482.04
  5. Step 5: Solve for x
    x = 17,597,189,482.04/151,916.85
  6. Step 6: Final answer
    x = 115,834.35

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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.