Home / 107,058.80-160,415.40-89,433.20

Finding the Fourth Proportional to 107,058.80, 160,415.40 and 89,433.20

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Solution

The fourth proportional to 107,058.80, 160,415.40 and 89,433.20 is: 134,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,058.80 : 160,415.40 = 89,433.20 : x
  2. Step 2: Convert to fraction form
    107,058.80/160,415.40 = 89,433.20/x
  3. Step 3: Cross multiply
    107,058.80x = 160,415.40 × 89,433.20
  4. Step 4: Simplify right side
    107,058.80x = 14,346,462,551.28
  5. Step 5: Solve for x
    x = 14,346,462,551.28/107,058.80
  6. Step 6: Final answer
    x = 134,005.45

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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.