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Finding the Fourth Proportional to 70,159.62, 105,173.81 and 25,774.46

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Solution

The fourth proportional to 70,159.62, 105,173.81 and 25,774.46 is: 38,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,159.62 : 105,173.81 = 25,774.46 : x
  2. Step 2: Convert to fraction form
    70,159.62/105,173.81 = 25,774.46/x
  3. Step 3: Cross multiply
    70,159.62x = 105,173.81 × 25,774.46
  4. Step 4: Simplify right side
    70,159.62x = 2,710,797,504.15
  5. Step 5: Solve for x
    x = 2,710,797,504.15/70,159.62
  6. Step 6: Final answer
    x = 38,637.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.