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Finding the Fourth Proportional to 100,973.40, 151,460.10 and 30,843.60

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Solution

The fourth proportional to 100,973.40, 151,460.10 and 30,843.60 is: 46,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,973.40 : 151,460.10 = 30,843.60 : x
  2. Step 2: Convert to fraction form
    100,973.40/151,460.10 = 30,843.60/x
  3. Step 3: Cross multiply
    100,973.40x = 151,460.10 × 30,843.60
  4. Step 4: Simplify right side
    100,973.40x = 4,671,574,740.36
  5. Step 5: Solve for x
    x = 4,671,574,740.36/100,973.40
  6. Step 6: Final answer
    x = 46,265.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.