Home / 105,624.83-145,781.40-67,396.25

Finding the Fourth Proportional to 105,624.83, 145,781.40 and 67,396.25

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Solution

The fourth proportional to 105,624.83, 145,781.40 and 67,396.25 is: 93,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,624.83 : 145,781.40 = 67,396.25 : x
  2. Step 2: Convert to fraction form
    105,624.83/145,781.40 = 67,396.25/x
  3. Step 3: Cross multiply
    105,624.83x = 145,781.40 × 67,396.25
  4. Step 4: Simplify right side
    105,624.83x = 9,825,119,679.75
  5. Step 5: Solve for x
    x = 9,825,119,679.75/105,624.83
  6. Step 6: Final answer
    x = 93,019.03

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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.