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Finding the Fourth Proportional to 188,779.64, 260,510.46 and 103,894.88

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Solution

The fourth proportional to 188,779.64, 260,510.46 and 103,894.88 is: 143,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,779.64 : 260,510.46 = 103,894.88 : x
  2. Step 2: Convert to fraction form
    188,779.64/260,510.46 = 103,894.88/x
  3. Step 3: Cross multiply
    188,779.64x = 260,510.46 × 103,894.88
  4. Step 4: Simplify right side
    188,779.64x = 27,065,702,980.44
  5. Step 5: Solve for x
    x = 27,065,702,980.44/188,779.64
  6. Step 6: Final answer
    x = 143,371.94

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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.