Home / 141,389.22-195,117.74-77,731.10

Finding the Fourth Proportional to 141,389.22, 195,117.74 and 77,731.10

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Solution

The fourth proportional to 141,389.22, 195,117.74 and 77,731.10 is: 107,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,389.22 : 195,117.74 = 77,731.10 : x
  2. Step 2: Convert to fraction form
    141,389.22/195,117.74 = 77,731.10/x
  3. Step 3: Cross multiply
    141,389.22x = 195,117.74 × 77,731.10
  4. Step 4: Simplify right side
    141,389.22x = 15,166,716,559.71
  5. Step 5: Solve for x
    x = 15,166,716,559.71/141,389.22
  6. Step 6: Final answer
    x = 107,269.26

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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.