Home / 187,117.84-258,222.18-102,235.54

Finding the Fourth Proportional to 187,117.84, 258,222.18 and 102,235.54

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Solution

The fourth proportional to 187,117.84, 258,222.18 and 102,235.54 is: 141,084.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,117.84 : 258,222.18 = 102,235.54 : x
  2. Step 2: Convert to fraction form
    187,117.84/258,222.18 = 102,235.54/x
  3. Step 3: Cross multiply
    187,117.84x = 258,222.18 × 102,235.54
  4. Step 4: Simplify right side
    187,117.84x = 26,399,484,012.28
  5. Step 5: Solve for x
    x = 26,399,484,012.28/187,117.84
  6. Step 6: Final answer
    x = 141,084.81

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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.