Home / 118,829.47-163,923.34-80,576.08

Finding the Fourth Proportional to 118,829.47, 163,923.34 and 80,576.08

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Solution

The fourth proportional to 118,829.47, 163,923.34 and 80,576.08 is: 111,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829.47 : 163,923.34 = 80,576.08 : x
  2. Step 2: Convert to fraction form
    118,829.47/163,923.34 = 80,576.08/x
  3. Step 3: Cross multiply
    118,829.47x = 163,923.34 × 80,576.08
  4. Step 4: Simplify right side
    118,829.47x = 13,208,300,157.71
  5. Step 5: Solve for x
    x = 13,208,300,157.71/118,829.47
  6. Step 6: Final answer
    x = 111,153.40

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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.