Home / 139,715.04-209,455.01-60,769.81

Finding the Fourth Proportional to 139,715.04, 209,455.01 and 60,769.81

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Solution

The fourth proportional to 139,715.04, 209,455.01 and 60,769.81 is: 91,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,715.04 : 209,455.01 = 60,769.81 : x
  2. Step 2: Convert to fraction form
    139,715.04/209,455.01 = 60,769.81/x
  3. Step 3: Cross multiply
    139,715.04x = 209,455.01 × 60,769.81
  4. Step 4: Simplify right side
    139,715.04x = 12,728,539,810.12
  5. Step 5: Solve for x
    x = 12,728,539,810.12/139,715.04
  6. Step 6: Final answer
    x = 91,103.58

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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.