Home / 139,030.20-208,561.70-104,191.29

Finding the Fourth Proportional to 139,030.20, 208,561.70 and 104,191.29

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Solution

The fourth proportional to 139,030.20, 208,561.70 and 104,191.29 is: 156,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,030.20 : 208,561.70 = 104,191.29 : x
  2. Step 2: Convert to fraction form
    139,030.20/208,561.70 = 104,191.29/x
  3. Step 3: Cross multiply
    139,030.20x = 208,561.70 × 104,191.29
  4. Step 4: Simplify right side
    139,030.20x = 21,730,312,567.59
  5. Step 5: Solve for x
    x = 21,730,312,567.59/139,030.20
  6. Step 6: Final answer
    x = 156,299.23

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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.