Home / 104,731.66-144,530.32-56,985.36

Finding the Fourth Proportional to 104,731.66, 144,530.32 and 56,985.36

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Solution

The fourth proportional to 104,731.66, 144,530.32 and 56,985.36 is: 78,640.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,731.66 : 144,530.32 = 56,985.36 : x
  2. Step 2: Convert to fraction form
    104,731.66/144,530.32 = 56,985.36/x
  3. Step 3: Cross multiply
    104,731.66x = 144,530.32 × 56,985.36
  4. Step 4: Simplify right side
    104,731.66x = 8,236,112,316.12
  5. Step 5: Solve for x
    x = 8,236,112,316.12/104,731.66
  6. Step 6: Final answer
    x = 78,640.14

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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.