Home / 105,440.93-145,502.39-57,695.21

Finding the Fourth Proportional to 105,440.93, 145,502.39 and 57,695.21

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Solution

The fourth proportional to 105,440.93, 145,502.39 and 57,695.21 is: 79,616.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,440.93 : 145,502.39 = 57,695.21 : x
  2. Step 2: Convert to fraction form
    105,440.93/145,502.39 = 57,695.21/x
  3. Step 3: Cross multiply
    105,440.93x = 145,502.39 × 57,695.21
  4. Step 4: Simplify right side
    105,440.93x = 8,394,790,946.55
  5. Step 5: Solve for x
    x = 8,394,790,946.55/105,440.93
  6. Step 6: Final answer
    x = 79,616.06

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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.