Home / 99,012.10-148,365.27-66,865.18

Finding the Fourth Proportional to 99,012.10, 148,365.27 and 66,865.18

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Solution

The fourth proportional to 99,012.10, 148,365.27 and 66,865.18 is: 100,194.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,012.10 : 148,365.27 = 66,865.18 : x
  2. Step 2: Convert to fraction form
    99,012.10/148,365.27 = 66,865.18/x
  3. Step 3: Cross multiply
    99,012.10x = 148,365.27 × 66,865.18
  4. Step 4: Simplify right side
    99,012.10x = 9,920,470,484.30
  5. Step 5: Solve for x
    x = 9,920,470,484.30/99,012.10
  6. Step 6: Final answer
    x = 100,194.53

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1.5x scale

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.