Home / 103,290.74-142,540.65-57,968.67

Finding the Fourth Proportional to 103,290.74, 142,540.65 and 57,968.67

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Solution

The fourth proportional to 103,290.74, 142,540.65 and 57,968.67 is: 79,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,290.74 : 142,540.65 = 57,968.67 : x
  2. Step 2: Convert to fraction form
    103,290.74/142,540.65 = 57,968.67/x
  3. Step 3: Cross multiply
    103,290.74x = 142,540.65 × 57,968.67
  4. Step 4: Simplify right side
    103,290.74x = 8,262,891,901.44
  5. Step 5: Solve for x
    x = 8,262,891,901.44/103,290.74
  6. Step 6: Final answer
    x = 79,996.45

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1.5x scale

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.