Home / 123,238,072.32-170,073,852.96-68,233,928.40

Finding the Fourth Proportional to 123,238,072.32, 170,073,852.96 and 68,233,928.40

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Solution

The fourth proportional to 123,238,072.32, 170,073,852.96 and 68,233,928.40 is: 94,165,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,238,072.32 : 170,073,852.96 = 68,233,928.40 : x
  2. Step 2: Convert to fraction form
    123,238,072.32/170,073,852.96 = 68,233,928.40/x
  3. Step 3: Cross multiply
    123,238,072.32x = 170,073,852.96 × 68,233,928.40
  4. Step 4: Simplify right side
    123,238,072.32x = 11,604,807,105,584,770
  5. Step 5: Solve for x
    x = 11,604,807,105,584,770/123,238,072.32
  6. Step 6: Final answer
    x = 94,165,762.96

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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.