Home / 105,612.93-157,626.14-91,318.32

Finding the Fourth Proportional to 105,612.93, 157,626.14 and 91,318.32

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Solution

The fourth proportional to 105,612.93, 157,626.14 and 91,318.32 is: 136,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,612.93 : 157,626.14 = 91,318.32 : x
  2. Step 2: Convert to fraction form
    105,612.93/157,626.14 = 91,318.32/x
  3. Step 3: Cross multiply
    105,612.93x = 157,626.14 × 91,318.32
  4. Step 4: Simplify right side
    105,612.93x = 14,394,153,836.29
  5. Step 5: Solve for x
    x = 14,394,153,836.29/105,612.93
  6. Step 6: Final answer
    x = 136,291.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.