Home / 118,439.87-163,394.52-70,665.44

Finding the Fourth Proportional to 118,439.87, 163,394.52 and 70,665.44

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Solution

The fourth proportional to 118,439.87, 163,394.52 and 70,665.44 is: 97,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,439.87 : 163,394.52 = 70,665.44 : x
  2. Step 2: Convert to fraction form
    118,439.87/163,394.52 = 70,665.44/x
  3. Step 3: Cross multiply
    118,439.87x = 163,394.52 × 70,665.44
  4. Step 4: Simplify right side
    118,439.87x = 11,546,345,649.39
  5. Step 5: Solve for x
    x = 11,546,345,649.39/118,439.87
  6. Step 6: Final answer
    x = 97,486.98

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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.