Home / 145,698.72-218,089.44-100,455.36

Finding the Fourth Proportional to 145,698.72, 218,089.44 and 100,455.36

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Solution

The fourth proportional to 145,698.72, 218,089.44 and 100,455.36 is: 150,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,698.72 : 218,089.44 = 100,455.36 : x
  2. Step 2: Convert to fraction form
    145,698.72/218,089.44 = 100,455.36/x
  3. Step 3: Cross multiply
    145,698.72x = 218,089.44 × 100,455.36
  4. Step 4: Simplify right side
    145,698.72x = 21,908,253,207.40
  5. Step 5: Solve for x
    x = 21,908,253,207.40/145,698.72
  6. Step 6: Final answer
    x = 150,366.82

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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.