Home / 104,565.12-144,301.20-56,819.28

Finding the Fourth Proportional to 104,565.12, 144,301.20 and 56,819.28

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Solution

The fourth proportional to 104,565.12, 144,301.20 and 56,819.28 is: 78,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,565.12 : 144,301.20 = 56,819.28 : x
  2. Step 2: Convert to fraction form
    104,565.12/144,301.20 = 56,819.28/x
  3. Step 3: Cross multiply
    104,565.12x = 144,301.20 × 56,819.28
  4. Step 4: Simplify right side
    104,565.12x = 8,199,090,287.14
  5. Step 5: Solve for x
    x = 8,199,090,287.14/104,565.12
  6. Step 6: Final answer
    x = 78,411.33

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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.