Home / 103,316.69-154,956.88-28,418.77

Finding the Fourth Proportional to 103,316.69, 154,956.88 and 28,418.77

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Solution

The fourth proportional to 103,316.69, 154,956.88 and 28,418.77 is: 42,623.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,316.69 : 154,956.88 = 28,418.77 : x
  2. Step 2: Convert to fraction form
    103,316.69/154,956.88 = 28,418.77/x
  3. Step 3: Cross multiply
    103,316.69x = 154,956.88 × 28,418.77
  4. Step 4: Simplify right side
    103,316.69x = 4,403,683,932.64
  5. Step 5: Solve for x
    x = 4,403,683,932.64/103,316.69
  6. Step 6: Final answer
    x = 42,623.16

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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.