Home / 105,813.68-146,023.98-58,070.12

Finding the Fourth Proportional to 105,813.68, 146,023.98 and 58,070.12

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Solution

The fourth proportional to 105,813.68, 146,023.98 and 58,070.12 is: 80,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,813.68 : 146,023.98 = 58,070.12 : x
  2. Step 2: Convert to fraction form
    105,813.68/146,023.98 = 58,070.12/x
  3. Step 3: Cross multiply
    105,813.68x = 146,023.98 × 58,070.12
  4. Step 4: Simplify right side
    105,813.68x = 8,479,630,041.48
  5. Step 5: Solve for x
    x = 8,479,630,041.48/105,813.68
  6. Step 6: Final answer
    x = 80,137.37

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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.