Home / 70,159.23-105,280.36-25,817.12

Finding the Fourth Proportional to 70,159.23, 105,280.36 and 25,817.12

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Solution

The fourth proportional to 70,159.23, 105,280.36 and 25,817.12 is: 38,740.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,159.23 : 105,280.36 = 25,817.12 : x
  2. Step 2: Convert to fraction form
    70,159.23/105,280.36 = 25,817.12/x
  3. Step 3: Cross multiply
    70,159.23x = 105,280.36 × 25,817.12
  4. Step 4: Simplify right side
    70,159.23x = 2,718,035,687.76
  5. Step 5: Solve for x
    x = 2,718,035,687.76/70,159.23
  6. Step 6: Final answer
    x = 38,740.96

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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.