Home / 119,146,156.56-164,435,009.85-72,129,135.72

Finding the Fourth Proportional to 119,146,156.56, 164,435,009.85 and 72,129,135.72

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Solution

The fourth proportional to 119,146,156.56, 164,435,009.85 and 72,129,135.72 is: 99,546,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,146,156.56 : 164,435,009.85 = 72,129,135.72 : x
  2. Step 2: Convert to fraction form
    119,146,156.56/164,435,009.85 = 72,129,135.72/x
  3. Step 3: Cross multiply
    119,146,156.56x = 164,435,009.85 × 72,129,135.72
  4. Step 4: Simplify right side
    119,146,156.56x = 11,860,555,142,590,186
  5. Step 5: Solve for x
    x = 11,860,555,142,590,186/119,146,156.56
  6. Step 6: Final answer
    x = 99,546,267.25

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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.