Home / 103,804.13-143,249.70-56,057.48

Finding the Fourth Proportional to 103,804.13, 143,249.70 and 56,057.48

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Solution

The fourth proportional to 103,804.13, 143,249.70 and 56,057.48 is: 77,359.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,804.13 : 143,249.70 = 56,057.48 : x
  2. Step 2: Convert to fraction form
    103,804.13/143,249.70 = 56,057.48/x
  3. Step 3: Cross multiply
    103,804.13x = 143,249.70 × 56,057.48
  4. Step 4: Simplify right side
    103,804.13x = 8,030,216,476.51
  5. Step 5: Solve for x
    x = 8,030,216,476.51/103,804.13
  6. Step 6: Final answer
    x = 77,359.32

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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.