Home / 103,920.34-143,410.73-56,173.58

Finding the Fourth Proportional to 103,920.34, 143,410.73 and 56,173.58

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Solution

The fourth proportional to 103,920.34, 143,410.73 and 56,173.58 is: 77,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.34 : 143,410.73 = 56,173.58 : x
  2. Step 2: Convert to fraction form
    103,920.34/143,410.73 = 56,173.58/x
  3. Step 3: Cross multiply
    103,920.34x = 143,410.73 × 56,173.58
  4. Step 4: Simplify right side
    103,920.34x = 8,055,894,114.51
  5. Step 5: Solve for x
    x = 8,055,894,114.51/103,920.34
  6. Step 6: Final answer
    x = 77,519.90

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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.