Home / 123,279,784.13-170,143,027.62-75,586,601.72

Finding the Fourth Proportional to 123,279,784.13, 170,143,027.62 and 75,586,601.72

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Solution

The fourth proportional to 123,279,784.13, 170,143,027.62 and 75,586,601.72 is: 104,319,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,279,784.13 : 170,143,027.62 = 75,586,601.72 : x
  2. Step 2: Convert to fraction form
    123,279,784.13/170,143,027.62 = 75,586,601.72/x
  3. Step 3: Cross multiply
    123,279,784.13x = 170,143,027.62 × 75,586,601.72
  4. Step 4: Simplify right side
    123,279,784.13x = 12,860,533,264,147,900
  5. Step 5: Solve for x
    x = 12,860,533,264,147,900/123,279,784.13
  6. Step 6: Final answer
    x = 104,319,887.93

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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.