Home / 102,146,907.04-140,925,896.86-78,632,635.36

Finding the Fourth Proportional to 102,146,907.04, 140,925,896.86 and 78,632,635.36

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Solution

The fourth proportional to 102,146,907.04, 140,925,896.86 and 78,632,635.36 is: 108,484,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,146,907.04 : 140,925,896.86 = 78,632,635.36 : x
  2. Step 2: Convert to fraction form
    102,146,907.04/140,925,896.86 = 78,632,635.36/x
  3. Step 3: Cross multiply
    102,146,907.04x = 140,925,896.86 × 78,632,635.36
  4. Step 4: Simplify right side
    102,146,907.04x = 11,081,374,660,573,350
  5. Step 5: Solve for x
    x = 11,081,374,660,573,350/102,146,907.04
  6. Step 6: Final answer
    x = 108,484,681.34

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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.