Home / 141,460.80-195,206.40-81,031.68

Finding the Fourth Proportional to 141,460.80, 195,206.40 and 81,031.68

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Solution

The fourth proportional to 141,460.80, 195,206.40 and 81,031.68 is: 111,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,460.80 : 195,206.40 = 81,031.68 : x
  2. Step 2: Convert to fraction form
    141,460.80/195,206.40 = 81,031.68/x
  3. Step 3: Cross multiply
    141,460.80x = 195,206.40 × 81,031.68
  4. Step 4: Simplify right side
    141,460.80x = 15,817,902,538.75
  5. Step 5: Solve for x
    x = 15,817,902,538.75/141,460.80
  6. Step 6: Final answer
    x = 111,818.27

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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.