Home / 105,095.81-145,032.26-67,370.06

Finding the Fourth Proportional to 105,095.81, 145,032.26 and 67,370.06

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Solution

The fourth proportional to 105,095.81, 145,032.26 and 67,370.06 is: 92,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,095.81 : 145,032.26 = 67,370.06 : x
  2. Step 2: Convert to fraction form
    105,095.81/145,032.26 = 67,370.06/x
  3. Step 3: Cross multiply
    105,095.81x = 145,032.26 × 67,370.06
  4. Step 4: Simplify right side
    105,095.81x = 9,770,832,083.87
  5. Step 5: Solve for x
    x = 9,770,832,083.87/105,095.81
  6. Step 6: Final answer
    x = 92,970.71

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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.