Home / 123,902,957.88-171,160,929.90-99,286,669.08

Finding the Fourth Proportional to 123,902,957.88, 171,160,929.90 and 99,286,669.08

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Solution

The fourth proportional to 123,902,957.88, 171,160,929.90 and 99,286,669.08 is: 137,155,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,902,957.88 : 171,160,929.90 = 99,286,669.08 : x
  2. Step 2: Convert to fraction form
    123,902,957.88/171,160,929.90 = 99,286,669.08/x
  3. Step 3: Cross multiply
    123,902,957.88x = 171,160,929.90 × 99,286,669.08
  4. Step 4: Simplify right side
    123,902,957.88x = 16,993,998,606,406,378
  5. Step 5: Solve for x
    x = 16,993,998,606,406,378/123,902,957.88
  6. Step 6: Final answer
    x = 137,155,713.61

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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.