Home / 118,152.04-163,104.42-72,838.12

Finding the Fourth Proportional to 118,152.04, 163,104.42 and 72,838.12

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Solution

The fourth proportional to 118,152.04, 163,104.42 and 72,838.12 is: 100,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,152.04 : 163,104.42 = 72,838.12 : x
  2. Step 2: Convert to fraction form
    118,152.04/163,104.42 = 72,838.12/x
  3. Step 3: Cross multiply
    118,152.04x = 163,104.42 × 72,838.12
  4. Step 4: Simplify right side
    118,152.04x = 11,880,219,316.49
  5. Step 5: Solve for x
    x = 11,880,219,316.49/118,152.04
  6. Step 6: Final answer
    x = 100,550.27

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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.