Home / 111,852.18-154,362.66-64,108.60

Finding the Fourth Proportional to 111,852.18, 154,362.66 and 64,108.60

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Solution

The fourth proportional to 111,852.18, 154,362.66 and 64,108.60 is: 88,473.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,852.18 : 154,362.66 = 64,108.60 : x
  2. Step 2: Convert to fraction form
    111,852.18/154,362.66 = 64,108.60/x
  3. Step 3: Cross multiply
    111,852.18x = 154,362.66 × 64,108.60
  4. Step 4: Simplify right side
    111,852.18x = 9,895,974,024.88
  5. Step 5: Solve for x
    x = 9,895,974,024.88/111,852.18
  6. Step 6: Final answer
    x = 88,473.68

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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.