Home / 103,623.60-155,444.18-28,743.74

Finding the Fourth Proportional to 103,623.60, 155,444.18 and 28,743.74

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Solution

The fourth proportional to 103,623.60, 155,444.18 and 28,743.74 is: 43,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.60 : 155,444.18 = 28,743.74 : x
  2. Step 2: Convert to fraction form
    103,623.60/155,444.18 = 28,743.74/x
  3. Step 3: Cross multiply
    103,623.60x = 155,444.18 × 28,743.74
  4. Step 4: Simplify right side
    103,623.60x = 4,468,047,094.43
  5. Step 5: Solve for x
    x = 4,468,047,094.43/103,623.60
  6. Step 6: Final answer
    x = 43,118.05

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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.