Home / 145,081.37-217,683.57-70,257.27

Finding the Fourth Proportional to 145,081.37, 217,683.57 and 70,257.27

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Solution

The fourth proportional to 145,081.37, 217,683.57 and 70,257.27 is: 105,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,081.37 : 217,683.57 = 70,257.27 : x
  2. Step 2: Convert to fraction form
    145,081.37/217,683.57 = 70,257.27/x
  3. Step 3: Cross multiply
    145,081.37x = 217,683.57 × 70,257.27
  4. Step 4: Simplify right side
    145,081.37x = 15,293,852,263.64
  5. Step 5: Solve for x
    x = 15,293,852,263.64/145,081.37
  6. Step 6: Final answer
    x = 105,415.69

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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.