Home / 106,985.10-160,477.65-89,877.90

Finding the Fourth Proportional to 106,985.10, 160,477.65 and 89,877.90

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Solution

The fourth proportional to 106,985.10, 160,477.65 and 89,877.90 is: 134,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,985.10 : 160,477.65 = 89,877.90 : x
  2. Step 2: Convert to fraction form
    106,985.10/160,477.65 = 89,877.90/x
  3. Step 3: Cross multiply
    106,985.10x = 160,477.65 × 89,877.90
  4. Step 4: Simplify right side
    106,985.10x = 14,423,394,178.94
  5. Step 5: Solve for x
    x = 14,423,394,178.94/106,985.10
  6. Step 6: Final answer
    x = 134,816.85

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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.