Home / 118,630.21-163,709.25-64,182.20

Finding the Fourth Proportional to 118,630.21, 163,709.25 and 64,182.20

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Solution

The fourth proportional to 118,630.21, 163,709.25 and 64,182.20 is: 88,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.21 : 163,709.25 = 64,182.20 : x
  2. Step 2: Convert to fraction form
    118,630.21/163,709.25 = 64,182.20/x
  3. Step 3: Cross multiply
    118,630.21x = 163,709.25 × 64,182.20
  4. Step 4: Simplify right side
    118,630.21x = 10,507,219,913.71
  5. Step 5: Solve for x
    x = 10,507,219,913.71/118,630.21
  6. Step 6: Final answer
    x = 88,571.20

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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.