Home / 139,072.16-208,606.08-55,964

Finding the Fourth Proportional to 139,072.16, 208,606.08 and 55,964

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Solution

The fourth proportional to 139,072.16, 208,606.08 and 55,964 is: 83,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,072.16 : 208,606.08 = 55,964 : x
  2. Step 2: Convert to fraction form
    139,072.16/208,606.08 = 55,964/x
  3. Step 3: Cross multiply
    139,072.16x = 208,606.08 × 55,964
  4. Step 4: Simplify right side
    139,072.16x = 11,674,430,661.12
  5. Step 5: Solve for x
    x = 11,674,430,661.12/139,072.16
  6. Step 6: Final answer
    x = 83,945.13

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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.