Home / 170,830.80-256,355.55-99,753.30

Finding the Fourth Proportional to 170,830.80, 256,355.55 and 99,753.30

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Solution

The fourth proportional to 170,830.80, 256,355.55 and 99,753.30 is: 149,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,830.80 : 256,355.55 = 99,753.30 : x
  2. Step 2: Convert to fraction form
    170,830.80/256,355.55 = 99,753.30/x
  3. Step 3: Cross multiply
    170,830.80x = 256,355.55 × 99,753.30
  4. Step 4: Simplify right side
    170,830.80x = 25,572,312,085.82
  5. Step 5: Solve for x
    x = 25,572,312,085.82/170,830.80
  6. Step 6: Final answer
    x = 149,693.80

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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.