Home / 148,820.16-205,346.88-85,144.80

Finding the Fourth Proportional to 148,820.16, 205,346.88 and 85,144.80

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Solution

The fourth proportional to 148,820.16, 205,346.88 and 85,144.80 is: 117,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,820.16 : 205,346.88 = 85,144.80 : x
  2. Step 2: Convert to fraction form
    148,820.16/205,346.88 = 85,144.80/x
  3. Step 3: Cross multiply
    148,820.16x = 205,346.88 × 85,144.80
  4. Step 4: Simplify right side
    148,820.16x = 17,484,219,028.22
  5. Step 5: Solve for x
    x = 17,484,219,028.22/148,820.16
  6. Step 6: Final answer
    x = 117,485.55

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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.