Home / 118,488.09-163,516.68-70,768.95

Finding the Fourth Proportional to 118,488.09, 163,516.68 and 70,768.95

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Solution

The fourth proportional to 118,488.09, 163,516.68 and 70,768.95 is: 97,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,488.09 : 163,516.68 = 70,768.95 : x
  2. Step 2: Convert to fraction form
    118,488.09/163,516.68 = 70,768.95/x
  3. Step 3: Cross multiply
    118,488.09x = 163,516.68 × 70,768.95
  4. Step 4: Simplify right side
    118,488.09x = 11,571,903,751.09
  5. Step 5: Solve for x
    x = 11,571,903,751.09/118,488.09
  6. Step 6: Final answer
    x = 97,663.01

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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.