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Finding the Fourth Proportional to 103,271.32, 154,877.25 and 28,393.93

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Solution

The fourth proportional to 103,271.32, 154,877.25 and 28,393.93 is: 42,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,271.32 : 154,877.25 = 28,393.93 : x
  2. Step 2: Convert to fraction form
    103,271.32/154,877.25 = 28,393.93/x
  3. Step 3: Cross multiply
    103,271.32x = 154,877.25 × 28,393.93
  4. Step 4: Simplify right side
    103,271.32x = 4,397,573,020.71
  5. Step 5: Solve for x
    x = 4,397,573,020.71/103,271.32
  6. Step 6: Final answer
    x = 42,582.72

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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.