Home / 112,830.36-155,662.44-64,435.08

Finding the Fourth Proportional to 112,830.36, 155,662.44 and 64,435.08

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Solution

The fourth proportional to 112,830.36, 155,662.44 and 64,435.08 is: 88,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,830.36 : 155,662.44 = 64,435.08 : x
  2. Step 2: Convert to fraction form
    112,830.36/155,662.44 = 64,435.08/x
  3. Step 3: Cross multiply
    112,830.36x = 155,662.44 × 64,435.08
  4. Step 4: Simplify right side
    112,830.36x = 10,030,121,774.40
  5. Step 5: Solve for x
    x = 10,030,121,774.40/112,830.36
  6. Step 6: Final answer
    x = 88,895.59

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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.