Home / 105,575.90-145,658.58-60,221.12

Finding the Fourth Proportional to 105,575.90, 145,658.58 and 60,221.12

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Solution

The fourth proportional to 105,575.90, 145,658.58 and 60,221.12 is: 83,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,575.90 : 145,658.58 = 60,221.12 : x
  2. Step 2: Convert to fraction form
    105,575.90/145,658.58 = 60,221.12/x
  3. Step 3: Cross multiply
    105,575.90x = 145,658.58 × 60,221.12
  4. Step 4: Simplify right side
    105,575.90x = 8,771,722,825.21
  5. Step 5: Solve for x
    x = 8,771,722,825.21/105,575.90
  6. Step 6: Final answer
    x = 83,084.52

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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.