Home / 118,396.26-163,398.09-64,689.34

Finding the Fourth Proportional to 118,396.26, 163,398.09 and 64,689.34

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Solution

The fourth proportional to 118,396.26, 163,398.09 and 64,689.34 is: 89,277.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,396.26 : 163,398.09 = 64,689.34 : x
  2. Step 2: Convert to fraction form
    118,396.26/163,398.09 = 64,689.34/x
  3. Step 3: Cross multiply
    118,396.26x = 163,398.09 × 64,689.34
  4. Step 4: Simplify right side
    118,396.26x = 10,570,114,599.36
  5. Step 5: Solve for x
    x = 10,570,114,599.36/118,396.26
  6. Step 6: Final answer
    x = 89,277.44

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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.