Home / 186,385.86-257,203.35-105,802.61

Finding the Fourth Proportional to 186,385.86, 257,203.35 and 105,802.61

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Solution

The fourth proportional to 186,385.86, 257,203.35 and 105,802.61 is: 146,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,385.86 : 257,203.35 = 105,802.61 : x
  2. Step 2: Convert to fraction form
    186,385.86/257,203.35 = 105,802.61/x
  3. Step 3: Cross multiply
    186,385.86x = 257,203.35 × 105,802.61
  4. Step 4: Simplify right side
    186,385.86x = 27,212,784,444.73
  5. Step 5: Solve for x
    x = 27,212,784,444.73/186,385.86
  6. Step 6: Final answer
    x = 146,002.41

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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.