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Finding the Fourth Proportional to 103,975.44, 143,486.02 and 56,228.40

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Solution

The fourth proportional to 103,975.44, 143,486.02 and 56,228.40 is: 77,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,975.44 : 143,486.02 = 56,228.40 : x
  2. Step 2: Convert to fraction form
    103,975.44/143,486.02 = 56,228.40/x
  3. Step 3: Cross multiply
    103,975.44x = 143,486.02 × 56,228.40
  4. Step 4: Simplify right side
    103,975.44x = 8,067,989,326.97
  5. Step 5: Solve for x
    x = 8,067,989,326.97/103,975.44
  6. Step 6: Final answer
    x = 77,595.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.