Home / 70,157.64-105,174.21-25,774.02

Finding the Fourth Proportional to 70,157.64, 105,174.21 and 25,774.02

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Solution

The fourth proportional to 70,157.64, 105,174.21 and 25,774.02 is: 38,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,157.64 : 105,174.21 = 25,774.02 : x
  2. Step 2: Convert to fraction form
    70,157.64/105,174.21 = 25,774.02/x
  3. Step 3: Cross multiply
    70,157.64x = 105,174.21 × 25,774.02
  4. Step 4: Simplify right side
    70,157.64x = 2,710,762,192.02
  5. Step 5: Solve for x
    x = 2,710,762,192.02/70,157.64
  6. Step 6: Final answer
    x = 38,638.16

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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.