Home / 154,916.50-213,784.77-87,848.50

Finding the Fourth Proportional to 154,916.50, 213,784.77 and 87,848.50

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Solution

The fourth proportional to 154,916.50, 213,784.77 and 87,848.50 is: 121,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,916.50 : 213,784.77 = 87,848.50 : x
  2. Step 2: Convert to fraction form
    154,916.50/213,784.77 = 87,848.50/x
  3. Step 3: Cross multiply
    154,916.50x = 213,784.77 × 87,848.50
  4. Step 4: Simplify right side
    154,916.50x = 18,780,671,367.35
  5. Step 5: Solve for x
    x = 18,780,671,367.35/154,916.50
  6. Step 6: Final answer
    x = 121,230.93

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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.