Home / 141,405.09-195,139.74-77,746.98

Finding the Fourth Proportional to 141,405.09, 195,139.74 and 77,746.98

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Solution

The fourth proportional to 141,405.09, 195,139.74 and 77,746.98 is: 107,291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,405.09 : 195,139.74 = 77,746.98 : x
  2. Step 2: Convert to fraction form
    141,405.09/195,139.74 = 77,746.98/x
  3. Step 3: Cross multiply
    141,405.09x = 195,139.74 × 77,746.98
  4. Step 4: Simplify right side
    141,405.09x = 15,171,525,462.99
  5. Step 5: Solve for x
    x = 15,171,525,462.99/141,405.09
  6. Step 6: Final answer
    x = 107,291.23

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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.