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Finding the Fourth Proportional to 188,456.63, 260,070.14 and 103,573.69

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Solution

The fourth proportional to 188,456.63, 260,070.14 and 103,573.69 is: 142,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,456.63 : 260,070.14 = 103,573.69 : x
  2. Step 2: Convert to fraction form
    188,456.63/260,070.14 = 103,573.69/x
  3. Step 3: Cross multiply
    188,456.63x = 260,070.14 × 103,573.69
  4. Step 4: Simplify right side
    188,456.63x = 26,936,423,667.38
  5. Step 5: Solve for x
    x = 26,936,423,667.38/188,456.63
  6. Step 6: Final answer
    x = 142,931.69

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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.