Home / 187,355.18-258,534.45-105,678.92

Finding the Fourth Proportional to 187,355.18, 258,534.45 and 105,678.92

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Solution

The fourth proportional to 187,355.18, 258,534.45 and 105,678.92 is: 145,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,355.18 : 258,534.45 = 105,678.92 : x
  2. Step 2: Convert to fraction form
    187,355.18/258,534.45 = 105,678.92/x
  3. Step 3: Cross multiply
    187,355.18x = 258,534.45 × 105,678.92
  4. Step 4: Simplify right side
    187,355.18x = 27,321,641,458.79
  5. Step 5: Solve for x
    x = 27,321,641,458.79/187,355.18
  6. Step 6: Final answer
    x = 145,828.05

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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.