Home / 104,427.30-144,109.79-56,680.64

Finding the Fourth Proportional to 104,427.30, 144,109.79 and 56,680.64

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Solution

The fourth proportional to 104,427.30, 144,109.79 and 56,680.64 is: 78,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,427.30 : 144,109.79 = 56,680.64 : x
  2. Step 2: Convert to fraction form
    104,427.30/144,109.79 = 56,680.64/x
  3. Step 3: Cross multiply
    104,427.30x = 144,109.79 × 56,680.64
  4. Step 4: Simplify right side
    104,427.30x = 8,168,235,127.47
  5. Step 5: Solve for x
    x = 8,168,235,127.47/104,427.30
  6. Step 6: Final answer
    x = 78,219.35

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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.