Home / 105,585.84-158,403.24-30,707.76

Finding the Fourth Proportional to 105,585.84, 158,403.24 and 30,707.76

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Solution

The fourth proportional to 105,585.84, 158,403.24 and 30,707.76 is: 46,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,585.84 : 158,403.24 = 30,707.76 : x
  2. Step 2: Convert to fraction form
    105,585.84/158,403.24 = 30,707.76/x
  3. Step 3: Cross multiply
    105,585.84x = 158,403.24 × 30,707.76
  4. Step 4: Simplify right side
    105,585.84x = 4,864,208,677.14
  5. Step 5: Solve for x
    x = 4,864,208,677.14/105,585.84
  6. Step 6: Final answer
    x = 46,068.76

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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.