Home / 103,810.10-143,255.57-63,523.74

Finding the Fourth Proportional to 103,810.10, 143,255.57 and 63,523.74

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Solution

The fourth proportional to 103,810.10, 143,255.57 and 63,523.74 is: 87,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,810.10 : 143,255.57 = 63,523.74 : x
  2. Step 2: Convert to fraction form
    103,810.10/143,255.57 = 63,523.74/x
  3. Step 3: Cross multiply
    103,810.10x = 143,255.57 × 63,523.74
  4. Step 4: Simplify right side
    103,810.10x = 9,100,129,582.23
  5. Step 5: Solve for x
    x = 9,100,129,582.23/103,810.10
  6. Step 6: Final answer
    x = 87,661.31

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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.