Home / 104,182.10-143,771.65-56,435.30

Finding the Fourth Proportional to 104,182.10, 143,771.65 and 56,435.30

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Solution

The fourth proportional to 104,182.10, 143,771.65 and 56,435.30 is: 77,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,182.10 : 143,771.65 = 56,435.30 : x
  2. Step 2: Convert to fraction form
    104,182.10/143,771.65 = 56,435.30/x
  3. Step 3: Cross multiply
    104,182.10x = 143,771.65 × 56,435.30
  4. Step 4: Simplify right side
    104,182.10x = 8,113,796,199.25
  5. Step 5: Solve for x
    x = 8,113,796,199.25/104,182.10
  6. Step 6: Final answer
    x = 77,880.90

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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.