Home / 105,213.87-145,207.62-59,902.74

Finding the Fourth Proportional to 105,213.87, 145,207.62 and 59,902.74

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Solution

The fourth proportional to 105,213.87, 145,207.62 and 59,902.74 is: 82,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,213.87 : 145,207.62 = 59,902.74 : x
  2. Step 2: Convert to fraction form
    105,213.87/145,207.62 = 59,902.74/x
  3. Step 3: Cross multiply
    105,213.87x = 145,207.62 × 59,902.74
  4. Step 4: Simplify right side
    105,213.87x = 8,698,334,306.88
  5. Step 5: Solve for x
    x = 8,698,334,306.88/105,213.87
  6. Step 6: Final answer
    x = 82,672.89

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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.