Home / 187,628.65-258,929.06-111,152.10

Finding the Fourth Proportional to 187,628.65, 258,929.06 and 111,152.10

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Solution

The fourth proportional to 187,628.65, 258,929.06 and 111,152.10 is: 153,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,628.65 : 258,929.06 = 111,152.10 : x
  2. Step 2: Convert to fraction form
    187,628.65/258,929.06 = 111,152.10/x
  3. Step 3: Cross multiply
    187,628.65x = 258,929.06 × 111,152.10
  4. Step 4: Simplify right side
    187,628.65x = 28,780,507,753.26
  5. Step 5: Solve for x
    x = 28,780,507,753.26/187,628.65
  6. Step 6: Final answer
    x = 153,390.79

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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.