Home / 345,707.43-518,561.01-109,068.63

Finding the Fourth Proportional to 345,707.43, 518,561.01 and 109,068.63

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Solution

The fourth proportional to 345,707.43, 518,561.01 and 109,068.63 is: 163,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,707.43 : 518,561.01 = 109,068.63 : x
  2. Step 2: Convert to fraction form
    345,707.43/518,561.01 = 109,068.63/x
  3. Step 3: Cross multiply
    345,707.43x = 518,561.01 × 109,068.63
  4. Step 4: Simplify right side
    345,707.43x = 56,558,738,932.12
  5. Step 5: Solve for x
    x = 56,558,738,932.12/345,707.43
  6. Step 6: Final answer
    x = 163,602.90

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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.