Home / 103,004.40-154,225.62-77,968.56

Finding the Fourth Proportional to 103,004.40, 154,225.62 and 77,968.56

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Solution

The fourth proportional to 103,004.40, 154,225.62 and 77,968.56 is: 116,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,004.40 : 154,225.62 = 77,968.56 : x
  2. Step 2: Convert to fraction form
    103,004.40/154,225.62 = 77,968.56/x
  3. Step 3: Cross multiply
    103,004.40x = 154,225.62 × 77,968.56
  4. Step 4: Simplify right side
    103,004.40x = 12,024,749,506.51
  5. Step 5: Solve for x
    x = 12,024,749,506.51/103,004.40
  6. Step 6: Final answer
    x = 116,740.15

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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.