Home / 151,985.98-209,734.11-83,999.44

Finding the Fourth Proportional to 151,985.98, 209,734.11 and 83,999.44

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Solution

The fourth proportional to 151,985.98, 209,734.11 and 83,999.44 is: 115,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,985.98 : 209,734.11 = 83,999.44 : x
  2. Step 2: Convert to fraction form
    151,985.98/209,734.11 = 83,999.44/x
  3. Step 3: Cross multiply
    151,985.98x = 209,734.11 × 83,999.44
  4. Step 4: Simplify right side
    151,985.98x = 17,617,547,788.90
  5. Step 5: Solve for x
    x = 17,617,547,788.90/151,985.98
  6. Step 6: Final answer
    x = 115,915.61

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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.