Home / 105,154,067.05-157,590,106.84-81,838,961.54

Finding the Fourth Proportional to 105,154,067.05, 157,590,106.84 and 81,838,961.54

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Solution

The fourth proportional to 105,154,067.05, 157,590,106.84 and 81,838,961.54 is: 122,648,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,154,067.05 : 157,590,106.84 = 81,838,961.54 : x
  2. Step 2: Convert to fraction form
    105,154,067.05/157,590,106.84 = 81,838,961.54/x
  3. Step 3: Cross multiply
    105,154,067.05x = 157,590,106.84 × 81,838,961.54
  4. Step 4: Simplify right side
    105,154,067.05x = 12,897,010,692,668,562
  5. Step 5: Solve for x
    x = 12,897,010,692,668,562/105,154,067.05
  6. Step 6: Final answer
    x = 122,648,710.17

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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.