Home / 103,784.32-143,196-63,483.36

Finding the Fourth Proportional to 103,784.32, 143,196 and 63,483.36

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Solution

The fourth proportional to 103,784.32, 143,196 and 63,483.36 is: 87,590.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,784.32 : 143,196 = 63,483.36 : x
  2. Step 2: Convert to fraction form
    103,784.32/143,196 = 63,483.36/x
  3. Step 3: Cross multiply
    103,784.32x = 143,196 × 63,483.36
  4. Step 4: Simplify right side
    103,784.32x = 9,090,563,218.56
  5. Step 5: Solve for x
    x = 9,090,563,218.56/103,784.32
  6. Step 6: Final answer
    x = 87,590.91

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1.5x scale

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.