Home / 118,814.23-163,913.38-70,408.63

Finding the Fourth Proportional to 118,814.23, 163,913.38 and 70,408.63

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Solution

The fourth proportional to 118,814.23, 163,913.38 and 70,408.63 is: 97,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,814.23 : 163,913.38 = 70,408.63 : x
  2. Step 2: Convert to fraction form
    118,814.23/163,913.38 = 70,408.63/x
  3. Step 3: Cross multiply
    118,814.23x = 163,913.38 × 70,408.63
  4. Step 4: Simplify right side
    118,814.23x = 11,540,916,524.47
  5. Step 5: Solve for x
    x = 11,540,916,524.47/118,814.23
  6. Step 6: Final answer
    x = 97,134.13

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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.