Home / 139,079.16-208,616.58-55,971

Finding the Fourth Proportional to 139,079.16, 208,616.58 and 55,971

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Solution

The fourth proportional to 139,079.16, 208,616.58 and 55,971 is: 83,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,079.16 : 208,616.58 = 55,971 : x
  2. Step 2: Convert to fraction form
    139,079.16/208,616.58 = 55,971/x
  3. Step 3: Cross multiply
    139,079.16x = 208,616.58 × 55,971
  4. Step 4: Simplify right side
    139,079.16x = 11,676,478,599.18
  5. Step 5: Solve for x
    x = 11,676,478,599.18/139,079.16
  6. Step 6: Final answer
    x = 83,955.63

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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.