Home / 154,053.16-212,594.35-86,072.56

Finding the Fourth Proportional to 154,053.16, 212,594.35 and 86,072.56

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Solution

The fourth proportional to 154,053.16, 212,594.35 and 86,072.56 is: 118,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,053.16 : 212,594.35 = 86,072.56 : x
  2. Step 2: Convert to fraction form
    154,053.16/212,594.35 = 86,072.56/x
  3. Step 3: Cross multiply
    154,053.16x = 212,594.35 × 86,072.56
  4. Step 4: Simplify right side
    154,053.16x = 18,298,538,883.06
  5. Step 5: Solve for x
    x = 18,298,538,883.06/154,053.16
  6. Step 6: Final answer
    x = 118,780.68

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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.