Home / 205,582.60-307,913.10-122,638.60

Finding the Fourth Proportional to 205,582.60, 307,913.10 and 122,638.60

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Solution

The fourth proportional to 205,582.60, 307,913.10 and 122,638.60 is: 183,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,582.60 : 307,913.10 = 122,638.60 : x
  2. Step 2: Convert to fraction form
    205,582.60/307,913.10 = 122,638.60/x
  3. Step 3: Cross multiply
    205,582.60x = 307,913.10 × 122,638.60
  4. Step 4: Simplify right side
    205,582.60x = 37,762,031,505.66
  5. Step 5: Solve for x
    x = 37,762,031,505.66/205,582.60
  6. Step 6: Final answer
    x = 183,683.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.