Home / 140,103.48-193,342.77-76,441.53

Finding the Fourth Proportional to 140,103.48, 193,342.77 and 76,441.53

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Solution

The fourth proportional to 140,103.48, 193,342.77 and 76,441.53 is: 105,489.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,103.48 : 193,342.77 = 76,441.53 : x
  2. Step 2: Convert to fraction form
    140,103.48/193,342.77 = 76,441.53/x
  3. Step 3: Cross multiply
    140,103.48x = 193,342.77 × 76,441.53
  4. Step 4: Simplify right side
    140,103.48x = 14,779,417,153.24
  5. Step 5: Solve for x
    x = 14,779,417,153.24/140,103.48
  6. Step 6: Final answer
    x = 105,489.29

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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.