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Finding the Fourth Proportional to 188,543.06, 260,152.12 and 105,759.71

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Solution

The fourth proportional to 188,543.06, 260,152.12 and 105,759.71 is: 145,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,543.06 : 260,152.12 = 105,759.71 : x
  2. Step 2: Convert to fraction form
    188,543.06/260,152.12 = 105,759.71/x
  3. Step 3: Cross multiply
    188,543.06x = 260,152.12 × 105,759.71
  4. Step 4: Simplify right side
    188,543.06x = 27,513,612,238.29
  5. Step 5: Solve for x
    x = 27,513,612,238.29/188,543.06
  6. Step 6: Final answer
    x = 145,927.47

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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.