Home / 103,206.19-142,425.72-57,266.67

Finding the Fourth Proportional to 103,206.19, 142,425.72 and 57,266.67

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Solution

The fourth proportional to 103,206.19, 142,425.72 and 57,266.67 is: 79,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206.19 : 142,425.72 = 57,266.67 : x
  2. Step 2: Convert to fraction form
    103,206.19/142,425.72 = 57,266.67/x
  3. Step 3: Cross multiply
    103,206.19x = 142,425.72 × 57,266.67
  4. Step 4: Simplify right side
    103,206.19x = 8,156,246,706.75
  5. Step 5: Solve for x
    x = 8,156,246,706.75/103,206.19
  6. Step 6: Final answer
    x = 79,028.66

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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.