Home / 141,518.98-195,310-105,646.69

Finding the Fourth Proportional to 141,518.98, 195,310 and 105,646.69

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Solution

The fourth proportional to 141,518.98, 195,310 and 105,646.69 is: 145,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,518.98 : 195,310 = 105,646.69 : x
  2. Step 2: Convert to fraction form
    141,518.98/195,310 = 105,646.69/x
  3. Step 3: Cross multiply
    141,518.98x = 195,310 × 105,646.69
  4. Step 4: Simplify right side
    141,518.98x = 20,633,855,023.90
  5. Step 5: Solve for x
    x = 20,633,855,023.90/141,518.98
  6. Step 6: Final answer
    x = 145,802.74

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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.