Home / 205,056.48-307,152.36-130,137.12

Finding the Fourth Proportional to 205,056.48, 307,152.36 and 130,137.12

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Solution

The fourth proportional to 205,056.48, 307,152.36 and 130,137.12 is: 194,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,056.48 : 307,152.36 = 130,137.12 : x
  2. Step 2: Convert to fraction form
    205,056.48/307,152.36 = 130,137.12/x
  3. Step 3: Cross multiply
    205,056.48x = 307,152.36 × 130,137.12
  4. Step 4: Simplify right side
    205,056.48x = 39,971,923,531.60
  5. Step 5: Solve for x
    x = 39,971,923,531.60/205,056.48
  6. Step 6: Final answer
    x = 194,931.29

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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.