Home / 104,909.28-144,776.52-57,164.64

Finding the Fourth Proportional to 104,909.28, 144,776.52 and 57,164.64

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Solution

The fourth proportional to 104,909.28, 144,776.52 and 57,164.64 is: 78,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,909.28 : 144,776.52 = 57,164.64 : x
  2. Step 2: Convert to fraction form
    104,909.28/144,776.52 = 57,164.64/x
  3. Step 3: Cross multiply
    104,909.28x = 144,776.52 × 57,164.64
  4. Step 4: Simplify right side
    104,909.28x = 8,276,097,646.25
  5. Step 5: Solve for x
    x = 8,276,097,646.25/104,909.28
  6. Step 6: Final answer
    x = 78,888.14

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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.