Home / 103,039.35-154,330.67-79,171.22

Finding the Fourth Proportional to 103,039.35, 154,330.67 and 79,171.22

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Solution

The fourth proportional to 103,039.35, 154,330.67 and 79,171.22 is: 118,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,039.35 : 154,330.67 = 79,171.22 : x
  2. Step 2: Convert to fraction form
    103,039.35/154,330.67 = 79,171.22/x
  3. Step 3: Cross multiply
    103,039.35x = 154,330.67 × 79,171.22
  4. Step 4: Simplify right side
    103,039.35x = 12,218,547,030.66
  5. Step 5: Solve for x
    x = 12,218,547,030.66/103,039.35
  6. Step 6: Final answer
    x = 118,581.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.