Home / 115,518.24-160,230.72-112,445.85

Finding the Fourth Proportional to 115,518.24, 160,230.72 and 112,445.85

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Solution

The fourth proportional to 115,518.24, 160,230.72 and 112,445.85 is: 155,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,518.24 : 160,230.72 = 112,445.85 : x
  2. Step 2: Convert to fraction form
    115,518.24/160,230.72 = 112,445.85/x
  3. Step 3: Cross multiply
    115,518.24x = 160,230.72 × 112,445.85
  4. Step 4: Simplify right side
    115,518.24x = 18,017,279,506.51
  5. Step 5: Solve for x
    x = 18,017,279,506.51/115,518.24
  6. Step 6: Final answer
    x = 155,969.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.