Home / 105,329.91-157,971.74-30,433.76

Finding the Fourth Proportional to 105,329.91, 157,971.74 and 30,433.76

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Solution

The fourth proportional to 105,329.91, 157,971.74 and 30,433.76 is: 45,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,329.91 : 157,971.74 = 30,433.76 : x
  2. Step 2: Convert to fraction form
    105,329.91/157,971.74 = 30,433.76/x
  3. Step 3: Cross multiply
    105,329.91x = 157,971.74 × 30,433.76
  4. Step 4: Simplify right side
    105,329.91x = 4,807,673,403.28
  5. Step 5: Solve for x
    x = 4,807,673,403.28/105,329.91
  6. Step 6: Final answer
    x = 45,643.95

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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.