Home / 115,556.90-159,465.66-64,566.50

Finding the Fourth Proportional to 115,556.90, 159,465.66 and 64,566.50

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Solution

The fourth proportional to 115,556.90, 159,465.66 and 64,566.50 is: 89,100.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,556.90 : 159,465.66 = 64,566.50 : x
  2. Step 2: Convert to fraction form
    115,556.90/159,465.66 = 64,566.50/x
  3. Step 3: Cross multiply
    115,556.90x = 159,465.66 × 64,566.50
  4. Step 4: Simplify right side
    115,556.90x = 10,296,139,536.39
  5. Step 5: Solve for x
    x = 10,296,139,536.39/115,556.90
  6. Step 6: Final answer
    x = 89,100.17

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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.