Home / 141,835.80-195,678.54-81,384.60

Finding the Fourth Proportional to 141,835.80, 195,678.54 and 81,384.60

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Solution

The fourth proportional to 141,835.80, 195,678.54 and 81,384.60 is: 112,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,835.80 : 195,678.54 = 81,384.60 : x
  2. Step 2: Convert to fraction form
    141,835.80/195,678.54 = 81,384.60/x
  3. Step 3: Cross multiply
    141,835.80x = 195,678.54 × 81,384.60
  4. Step 4: Simplify right side
    141,835.80x = 15,925,219,706.48
  5. Step 5: Solve for x
    x = 15,925,219,706.48/141,835.80
  6. Step 6: Final answer
    x = 112,279.27

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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.