Home / 106,708.10-160,015-56,776.36

Finding the Fourth Proportional to 106,708.10, 160,015 and 56,776.36

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Solution

The fourth proportional to 106,708.10, 160,015 and 56,776.36 is: 85,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,708.10 : 160,015 = 56,776.36 : x
  2. Step 2: Convert to fraction form
    106,708.10/160,015 = 56,776.36/x
  3. Step 3: Cross multiply
    106,708.10x = 160,015 × 56,776.36
  4. Step 4: Simplify right side
    106,708.10x = 9,085,069,245.40
  5. Step 5: Solve for x
    x = 9,085,069,245.40/106,708.10
  6. Step 6: Final answer
    x = 85,139.45

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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.