Home / 112,345,308.40-168,517,962.60-69,074,201.20

Finding the Fourth Proportional to 112,345,308.40, 168,517,962.60 and 69,074,201.20

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Solution

The fourth proportional to 112,345,308.40, 168,517,962.60 and 69,074,201.20 is: 103,611,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,345,308.40 : 168,517,962.60 = 69,074,201.20 : x
  2. Step 2: Convert to fraction form
    112,345,308.40/168,517,962.60 = 69,074,201.20/x
  3. Step 3: Cross multiply
    112,345,308.40x = 168,517,962.60 × 69,074,201.20
  4. Step 4: Simplify right side
    112,345,308.40x = 11,640,243,654,446,476
  5. Step 5: Solve for x
    x = 11,640,243,654,446,476/112,345,308.40
  6. Step 6: Final answer
    x = 103,611,301.80

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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.