Home / 145,556.10-218,260.31-66,602.66

Finding the Fourth Proportional to 145,556.10, 218,260.31 and 66,602.66

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Solution

The fourth proportional to 145,556.10, 218,260.31 and 66,602.66 is: 99,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,556.10 : 218,260.31 = 66,602.66 : x
  2. Step 2: Convert to fraction form
    145,556.10/218,260.31 = 66,602.66/x
  3. Step 3: Cross multiply
    145,556.10x = 218,260.31 × 66,602.66
  4. Step 4: Simplify right side
    145,556.10x = 14,536,715,794.11
  5. Step 5: Solve for x
    x = 14,536,715,794.11/145,556.10
  6. Step 6: Final answer
    x = 99,870.19

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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.