Home / 111,852.90-154,363.64-64,109.33

Finding the Fourth Proportional to 111,852.90, 154,363.64 and 64,109.33

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Solution

The fourth proportional to 111,852.90, 154,363.64 and 64,109.33 is: 88,474.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,852.90 : 154,363.64 = 64,109.33 : x
  2. Step 2: Convert to fraction form
    111,852.90/154,363.64 = 64,109.33/x
  3. Step 3: Cross multiply
    111,852.90x = 154,363.64 × 64,109.33
  4. Step 4: Simplify right side
    111,852.90x = 9,896,149,536.76
  5. Step 5: Solve for x
    x = 9,896,149,536.76/111,852.90
  6. Step 6: Final answer
    x = 88,474.68

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1.5x scale

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.