Home / 158,289.10-218,444.45-86,669.61

Finding the Fourth Proportional to 158,289.10, 218,444.45 and 86,669.61

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Solution

The fourth proportional to 158,289.10, 218,444.45 and 86,669.61 is: 119,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,289.10 : 218,444.45 = 86,669.61 : x
  2. Step 2: Convert to fraction form
    158,289.10/218,444.45 = 86,669.61/x
  3. Step 3: Cross multiply
    158,289.10x = 218,444.45 × 86,669.61
  4. Step 4: Simplify right side
    158,289.10x = 18,932,494,035.65
  5. Step 5: Solve for x
    x = 18,932,494,035.65/158,289.10
  6. Step 6: Final answer
    x = 119,607.06

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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.