Home / 103,135.44-154,703.28-28,256.24

Finding the Fourth Proportional to 103,135.44, 154,703.28 and 28,256.24

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Solution

The fourth proportional to 103,135.44, 154,703.28 and 28,256.24 is: 42,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,135.44 : 154,703.28 = 28,256.24 : x
  2. Step 2: Convert to fraction form
    103,135.44/154,703.28 = 28,256.24/x
  3. Step 3: Cross multiply
    103,135.44x = 154,703.28 × 28,256.24
  4. Step 4: Simplify right side
    103,135.44x = 4,371,333,501.19
  5. Step 5: Solve for x
    x = 4,371,333,501.19/103,135.44
  6. Step 6: Final answer
    x = 42,384.40

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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.