Home / 145,880.10-217,285.97-139,054.50

Finding the Fourth Proportional to 145,880.10, 217,285.97 and 139,054.50

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Solution

The fourth proportional to 145,880.10, 217,285.97 and 139,054.50 is: 207,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,880.10 : 217,285.97 = 139,054.50 : x
  2. Step 2: Convert to fraction form
    145,880.10/217,285.97 = 139,054.50/x
  3. Step 3: Cross multiply
    145,880.10x = 217,285.97 × 139,054.50
  4. Step 4: Simplify right side
    145,880.10x = 30,214,591,220.09
  5. Step 5: Solve for x
    x = 30,214,591,220.09/145,880.10
  6. Step 6: Final answer
    x = 207,119.35

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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.