Home / 212,870.24-293,780.64-122,238.08

Finding the Fourth Proportional to 212,870.24, 293,780.64 and 122,238.08

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Solution

The fourth proportional to 212,870.24, 293,780.64 and 122,238.08 is: 168,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,870.24 : 293,780.64 = 122,238.08 : x
  2. Step 2: Convert to fraction form
    212,870.24/293,780.64 = 122,238.08/x
  3. Step 3: Cross multiply
    212,870.24x = 293,780.64 × 122,238.08
  4. Step 4: Simplify right side
    212,870.24x = 35,911,181,374.77
  5. Step 5: Solve for x
    x = 35,911,181,374.77/212,870.24
  6. Step 6: Final answer
    x = 168,699.87

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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.