Home / 166,887.36-250,156.08-78,066

Finding the Fourth Proportional to 166,887.36, 250,156.08 and 78,066

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Solution

The fourth proportional to 166,887.36, 250,156.08 and 78,066 is: 117,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,887.36 : 250,156.08 = 78,066 : x
  2. Step 2: Convert to fraction form
    166,887.36/250,156.08 = 78,066/x
  3. Step 3: Cross multiply
    166,887.36x = 250,156.08 × 78,066
  4. Step 4: Simplify right side
    166,887.36x = 19,528,684,541.28
  5. Step 5: Solve for x
    x = 19,528,684,541.28/166,887.36
  6. Step 6: Final answer
    x = 117,017.16

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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.