Home / 187,071.05-258,153.86-102,188.45

Finding the Fourth Proportional to 187,071.05, 258,153.86 and 102,188.45

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Solution

The fourth proportional to 187,071.05, 258,153.86 and 102,188.45 is: 141,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,071.05 : 258,153.86 = 102,188.45 : x
  2. Step 2: Convert to fraction form
    187,071.05/258,153.86 = 102,188.45/x
  3. Step 3: Cross multiply
    187,071.05x = 258,153.86 × 102,188.45
  4. Step 4: Simplify right side
    187,071.05x = 26,380,342,303.97
  5. Step 5: Solve for x
    x = 26,380,342,303.97/187,071.05
  6. Step 6: Final answer
    x = 141,017.77

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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.