Home / 105,337.73-145,378.83-59,406.12

Finding the Fourth Proportional to 105,337.73, 145,378.83 and 59,406.12

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Solution

The fourth proportional to 105,337.73, 145,378.83 and 59,406.12 is: 81,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,337.73 : 145,378.83 = 59,406.12 : x
  2. Step 2: Convert to fraction form
    105,337.73/145,378.83 = 59,406.12/x
  3. Step 3: Cross multiply
    105,337.73x = 145,378.83 × 59,406.12
  4. Step 4: Simplify right side
    105,337.73x = 8,636,392,220.44
  5. Step 5: Solve for x
    x = 8,636,392,220.44/105,337.73
  6. Step 6: Final answer
    x = 81,987.65

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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.