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Finding the Fourth Proportional to 118,119.64, 163,023.80 and 70,400.67

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Solution

The fourth proportional to 118,119.64, 163,023.80 and 70,400.67 is: 97,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,119.64 : 163,023.80 = 70,400.67 : x
  2. Step 2: Convert to fraction form
    118,119.64/163,023.80 = 70,400.67/x
  3. Step 3: Cross multiply
    118,119.64x = 163,023.80 × 70,400.67
  4. Step 4: Simplify right side
    118,119.64x = 11,476,983,578.82
  5. Step 5: Solve for x
    x = 11,476,983,578.82/118,119.64
  6. Step 6: Final answer
    x = 97,164.06

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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.