Home / 103,896.06-143,376.60-56,149.38

Finding the Fourth Proportional to 103,896.06, 143,376.60 and 56,149.38

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Solution

The fourth proportional to 103,896.06, 143,376.60 and 56,149.38 is: 77,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,896.06 : 143,376.60 = 56,149.38 : x
  2. Step 2: Convert to fraction form
    103,896.06/143,376.60 = 56,149.38/x
  3. Step 3: Cross multiply
    103,896.06x = 143,376.60 × 56,149.38
  4. Step 4: Simplify right side
    103,896.06x = 8,050,507,196.51
  5. Step 5: Solve for x
    x = 8,050,507,196.51/103,896.06
  6. Step 6: Final answer
    x = 77,486.16

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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.