Home / 140,678.56-211,036.37-45,875.45

Finding the Fourth Proportional to 140,678.56, 211,036.37 and 45,875.45

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Solution

The fourth proportional to 140,678.56, 211,036.37 and 45,875.45 is: 68,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,678.56 : 211,036.37 = 45,875.45 : x
  2. Step 2: Convert to fraction form
    140,678.56/211,036.37 = 45,875.45/x
  3. Step 3: Cross multiply
    140,678.56x = 211,036.37 × 45,875.45
  4. Step 4: Simplify right side
    140,678.56x = 9,681,388,440.12
  5. Step 5: Solve for x
    x = 9,681,388,440.12/140,678.56
  6. Step 6: Final answer
    x = 68,819.22

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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.