Home / 102,742.58-153,877.35-52,699.70

Finding the Fourth Proportional to 102,742.58, 153,877.35 and 52,699.70

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Solution

The fourth proportional to 102,742.58, 153,877.35 and 52,699.70 is: 78,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,742.58 : 153,877.35 = 52,699.70 : x
  2. Step 2: Convert to fraction form
    102,742.58/153,877.35 = 52,699.70/x
  3. Step 3: Cross multiply
    102,742.58x = 153,877.35 × 52,699.70
  4. Step 4: Simplify right side
    102,742.58x = 8,109,290,181.80
  5. Step 5: Solve for x
    x = 8,109,290,181.80/102,742.58
  6. Step 6: Final answer
    x = 78,928.23

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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.