Home / 105,885,280.80-158,827,921.20-69,605,575.20

Finding the Fourth Proportional to 105,885,280.80, 158,827,921.20 and 69,605,575.20

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Solution

The fourth proportional to 105,885,280.80, 158,827,921.20 and 69,605,575.20 is: 104,408,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,885,280.80 : 158,827,921.20 = 69,605,575.20 : x
  2. Step 2: Convert to fraction form
    105,885,280.80/158,827,921.20 = 69,605,575.20/x
  3. Step 3: Cross multiply
    105,885,280.80x = 158,827,921.20 × 69,605,575.20
  4. Step 4: Simplify right side
    105,885,280.80x = 11,055,308,812,946,274
  5. Step 5: Solve for x
    x = 11,055,308,812,946,274/105,885,280.80
  6. Step 6: Final answer
    x = 104,408,362.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.