Home / 121,029,723.02-166,998,174.99-72,141,699.98

Finding the Fourth Proportional to 121,029,723.02, 166,998,174.99 and 72,141,699.98

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Solution

The fourth proportional to 121,029,723.02, 166,998,174.99 and 72,141,699.98 is: 99,541,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,029,723.02 : 166,998,174.99 = 72,141,699.98 : x
  2. Step 2: Convert to fraction form
    121,029,723.02/166,998,174.99 = 72,141,699.98/x
  3. Step 3: Cross multiply
    121,029,723.02x = 166,998,174.99 × 72,141,699.98
  4. Step 4: Simplify right side
    121,029,723.02x = 12,047,532,237,336,120
  5. Step 5: Solve for x
    x = 12,047,532,237,336,120/121,029,723.02
  6. Step 6: Final answer
    x = 99,541,930.17

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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.