Home / 104,068.90-143,495.36-76,884.32

Finding the Fourth Proportional to 104,068.90, 143,495.36 and 76,884.32

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Solution

The fourth proportional to 104,068.90, 143,495.36 and 76,884.32 is: 106,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,068.90 : 143,495.36 = 76,884.32 : x
  2. Step 2: Convert to fraction form
    104,068.90/143,495.36 = 76,884.32/x
  3. Step 3: Cross multiply
    104,068.90x = 143,495.36 × 76,884.32
  4. Step 4: Simplify right side
    104,068.90x = 11,032,543,176.76
  5. Step 5: Solve for x
    x = 11,032,543,176.76/104,068.90
  6. Step 6: Final answer
    x = 106,011.91

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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.