Home / 103,396.28-154,969.24-47,159.40

Finding the Fourth Proportional to 103,396.28, 154,969.24 and 47,159.40

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Solution

The fourth proportional to 103,396.28, 154,969.24 and 47,159.40 is: 70,682.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,396.28 : 154,969.24 = 47,159.40 : x
  2. Step 2: Convert to fraction form
    103,396.28/154,969.24 = 47,159.40/x
  3. Step 3: Cross multiply
    103,396.28x = 154,969.24 × 47,159.40
  4. Step 4: Simplify right side
    103,396.28x = 7,308,256,376.86
  5. Step 5: Solve for x
    x = 7,308,256,376.86/103,396.28
  6. Step 6: Final answer
    x = 70,682.00

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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.