Home / 212,945.45-293,864.10-122,307.26

Finding the Fourth Proportional to 212,945.45, 293,864.10 and 122,307.26

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Solution

The fourth proportional to 212,945.45, 293,864.10 and 122,307.26 is: 168,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,945.45 : 293,864.10 = 122,307.26 : x
  2. Step 2: Convert to fraction form
    212,945.45/293,864.10 = 122,307.26/x
  3. Step 3: Cross multiply
    212,945.45x = 293,864.10 × 122,307.26
  4. Step 4: Simplify right side
    212,945.45x = 35,941,712,883.37
  5. Step 5: Solve for x
    x = 35,941,712,883.37/212,945.45
  6. Step 6: Final answer
    x = 168,783.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.