Home / 151,999.32-209,755.40-83,085.72

Finding the Fourth Proportional to 151,999.32, 209,755.40 and 83,085.72

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Solution

The fourth proportional to 151,999.32, 209,755.40 and 83,085.72 is: 114,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,999.32 : 209,755.40 = 83,085.72 : x
  2. Step 2: Convert to fraction form
    151,999.32/209,755.40 = 83,085.72/x
  3. Step 3: Cross multiply
    151,999.32x = 209,755.40 × 83,085.72
  4. Step 4: Simplify right side
    151,999.32x = 17,427,678,432.89
  5. Step 5: Solve for x
    x = 17,427,678,432.89/151,999.32
  6. Step 6: Final answer
    x = 114,656.29

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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.