Home / 105,502.30-145,596.60-57,755.64

Finding the Fourth Proportional to 105,502.30, 145,596.60 and 57,755.64

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Solution

The fourth proportional to 105,502.30, 145,596.60 and 57,755.64 is: 79,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,502.30 : 145,596.60 = 57,755.64 : x
  2. Step 2: Convert to fraction form
    105,502.30/145,596.60 = 57,755.64/x
  3. Step 3: Cross multiply
    105,502.30x = 145,596.60 × 57,755.64
  4. Step 4: Simplify right side
    105,502.30x = 8,409,024,814.82
  5. Step 5: Solve for x
    x = 8,409,024,814.82/105,502.30
  6. Step 6: Final answer
    x = 79,704.66

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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.