Home / 104,010,873.12-143,303,892-68,665,728.72

Finding the Fourth Proportional to 104,010,873.12, 143,303,892 and 68,665,728.72

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Solution

The fourth proportional to 104,010,873.12, 143,303,892 and 68,665,728.72 is: 94,606,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,010,873.12 : 143,303,892 = 68,665,728.72 : x
  2. Step 2: Convert to fraction form
    104,010,873.12/143,303,892 = 68,665,728.72/x
  3. Step 3: Cross multiply
    104,010,873.12x = 143,303,892 × 68,665,728.72
  4. Step 4: Simplify right side
    104,010,873.12x = 9,840,066,172,592,178
  5. Step 5: Solve for x
    x = 9,840,066,172,592,178/104,010,873.12
  6. Step 6: Final answer
    x = 94,606,129.89

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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.