Home / 104,108.32-143,533.84-66,368.80

Finding the Fourth Proportional to 104,108.32, 143,533.84 and 66,368.80

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Solution

The fourth proportional to 104,108.32, 143,533.84 and 66,368.80 is: 91,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,108.32 : 143,533.84 = 66,368.80 : x
  2. Step 2: Convert to fraction form
    104,108.32/143,533.84 = 66,368.80/x
  3. Step 3: Cross multiply
    104,108.32x = 143,533.84 × 66,368.80
  4. Step 4: Simplify right side
    104,108.32x = 9,526,168,720.19
  5. Step 5: Solve for x
    x = 9,526,168,720.19/104,108.32
  6. Step 6: Final answer
    x = 91,502.47

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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.