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Finding the Fourth Proportional to 154,820.08, 213,697.08 and 101,113.45

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Solution

The fourth proportional to 154,820.08, 213,697.08 and 101,113.45 is: 139,566.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,820.08 : 213,697.08 = 101,113.45 : x
  2. Step 2: Convert to fraction form
    154,820.08/213,697.08 = 101,113.45/x
  3. Step 3: Cross multiply
    154,820.08x = 213,697.08 × 101,113.45
  4. Step 4: Simplify right side
    154,820.08x = 21,607,649,013.73
  5. Step 5: Solve for x
    x = 21,607,649,013.73/154,820.08
  6. Step 6: Final answer
    x = 139,566.19

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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.