Home / 152,040.81-209,849.63-88,415.31

Finding the Fourth Proportional to 152,040.81, 209,849.63 and 88,415.31

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Solution

The fourth proportional to 152,040.81, 209,849.63 and 88,415.31 is: 122,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.81 : 209,849.63 = 88,415.31 : x
  2. Step 2: Convert to fraction form
    152,040.81/209,849.63 = 88,415.31/x
  3. Step 3: Cross multiply
    152,040.81x = 209,849.63 × 88,415.31
  4. Step 4: Simplify right side
    152,040.81x = 18,553,919,647.76
  5. Step 5: Solve for x
    x = 18,553,919,647.76/152,040.81
  6. Step 6: Final answer
    x = 122,032.50

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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.