Home / 154,038.29-212,551.80-86,046.86

Finding the Fourth Proportional to 154,038.29, 212,551.80 and 86,046.86

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Solution

The fourth proportional to 154,038.29, 212,551.80 and 86,046.86 is: 118,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,038.29 : 212,551.80 = 86,046.86 : x
  2. Step 2: Convert to fraction form
    154,038.29/212,551.80 = 86,046.86/x
  3. Step 3: Cross multiply
    154,038.29x = 212,551.80 × 86,046.86
  4. Step 4: Simplify right side
    154,038.29x = 18,289,413,914.59
  5. Step 5: Solve for x
    x = 18,289,413,914.59/154,038.29
  6. Step 6: Final answer
    x = 118,732.90

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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.