Home / 105,208.40-145,187.38-57,461.72

Finding the Fourth Proportional to 105,208.40, 145,187.38 and 57,461.72

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Solution

The fourth proportional to 105,208.40, 145,187.38 and 57,461.72 is: 79,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,208.40 : 145,187.38 = 57,461.72 : x
  2. Step 2: Convert to fraction form
    105,208.40/145,187.38 = 57,461.72/x
  3. Step 3: Cross multiply
    105,208.40x = 145,187.38 × 57,461.72
  4. Step 4: Simplify right side
    105,208.40x = 8,342,716,577.09
  5. Step 5: Solve for x
    x = 8,342,716,577.09/105,208.40
  6. Step 6: Final answer
    x = 79,297.06

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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.