Home / 102,905.80-154,445.10-46,832.20

Finding the Fourth Proportional to 102,905.80, 154,445.10 and 46,832.20

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Solution

The fourth proportional to 102,905.80, 154,445.10 and 46,832.20 is: 70,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,905.80 : 154,445.10 = 46,832.20 : x
  2. Step 2: Convert to fraction form
    102,905.80/154,445.10 = 46,832.20/x
  3. Step 3: Cross multiply
    102,905.80x = 154,445.10 × 46,832.20
  4. Step 4: Simplify right side
    102,905.80x = 7,233,003,812.22
  5. Step 5: Solve for x
    x = 7,233,003,812.22/102,905.80
  6. Step 6: Final answer
    x = 70,287.62

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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.