Home / 261,985.18-361,539.55-142,753.18

Finding the Fourth Proportional to 261,985.18, 361,539.55 and 142,753.18

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Solution

The fourth proportional to 261,985.18, 361,539.55 and 142,753.18 is: 196,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,985.18 : 361,539.55 = 142,753.18 : x
  2. Step 2: Convert to fraction form
    261,985.18/361,539.55 = 142,753.18/x
  3. Step 3: Cross multiply
    261,985.18x = 361,539.55 × 142,753.18
  4. Step 4: Simplify right side
    261,985.18x = 51,610,920,458.27
  5. Step 5: Solve for x
    x = 51,610,920,458.27/261,985.18
  6. Step 6: Final answer
    x = 196,999.39

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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.