Home / 103,859.06-143,325.32-56,112.26

Finding the Fourth Proportional to 103,859.06, 143,325.32 and 56,112.26

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Solution

The fourth proportional to 103,859.06, 143,325.32 and 56,112.26 is: 77,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,859.06 : 143,325.32 = 56,112.26 : x
  2. Step 2: Convert to fraction form
    103,859.06/143,325.32 = 56,112.26/x
  3. Step 3: Cross multiply
    103,859.06x = 143,325.32 × 56,112.26
  4. Step 4: Simplify right side
    103,859.06x = 8,042,307,620.42
  5. Step 5: Solve for x
    x = 8,042,307,620.42/103,859.06
  6. Step 6: Final answer
    x = 77,434.82

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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.