Home / 105,809.04-146,019.50-58,065.54

Finding the Fourth Proportional to 105,809.04, 146,019.50 and 58,065.54

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Solution

The fourth proportional to 105,809.04, 146,019.50 and 58,065.54 is: 80,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,809.04 : 146,019.50 = 58,065.54 : x
  2. Step 2: Convert to fraction form
    105,809.04/146,019.50 = 58,065.54/x
  3. Step 3: Cross multiply
    105,809.04x = 146,019.50 × 58,065.54
  4. Step 4: Simplify right side
    105,809.04x = 8,478,700,827.70
  5. Step 5: Solve for x
    x = 8,478,700,827.70/105,809.04
  6. Step 6: Final answer
    x = 80,132.10

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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.