Home / 123,279,783.13-170,143,026.24-75,586,600.72

Finding the Fourth Proportional to 123,279,783.13, 170,143,026.24 and 75,586,600.72

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Solution

The fourth proportional to 123,279,783.13, 170,143,026.24 and 75,586,600.72 is: 104,319,886.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,279,783.13 : 170,143,026.24 = 75,586,600.72 : x
  2. Step 2: Convert to fraction form
    123,279,783.13/170,143,026.24 = 75,586,600.72/x
  3. Step 3: Cross multiply
    123,279,783.13x = 170,143,026.24 × 75,586,600.72
  4. Step 4: Simplify right side
    123,279,783.13x = 12,860,532,988,844,650
  5. Step 5: Solve for x
    x = 12,860,532,988,844,650/123,279,783.13
  6. Step 6: Final answer
    x = 104,319,886.54

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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.