Home / 72,067,125.60-108,100,688.40-71,395,279.20

Finding the Fourth Proportional to 72,067,125.60, 108,100,688.40 and 71,395,279.20

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Solution

The fourth proportional to 72,067,125.60, 108,100,688.40 and 71,395,279.20 is: 107,092,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067,125.60 : 108,100,688.40 = 71,395,279.20 : x
  2. Step 2: Convert to fraction form
    72,067,125.60/108,100,688.40 = 71,395,279.20/x
  3. Step 3: Cross multiply
    72,067,125.60x = 108,100,688.40 × 71,395,279.20
  4. Step 4: Simplify right side
    72,067,125.60x = 7,717,878,830,030,202
  5. Step 5: Solve for x
    x = 7,717,878,830,030,202/72,067,125.60
  6. Step 6: Final answer
    x = 107,092,918.80

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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.