Home / 103,893.12-143,372.52-56,146.38

Finding the Fourth Proportional to 103,893.12, 143,372.52 and 56,146.38

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Solution

The fourth proportional to 103,893.12, 143,372.52 and 56,146.38 is: 77,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,893.12 : 143,372.52 = 56,146.38 : x
  2. Step 2: Convert to fraction form
    103,893.12/143,372.52 = 56,146.38/x
  3. Step 3: Cross multiply
    103,893.12x = 143,372.52 × 56,146.38
  4. Step 4: Simplify right side
    103,893.12x = 8,049,847,989.48
  5. Step 5: Solve for x
    x = 8,049,847,989.48/103,893.12
  6. Step 6: Final answer
    x = 77,482.01

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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.