Home / 187,221.12-258,364.56-102,338.24

Finding the Fourth Proportional to 187,221.12, 258,364.56 and 102,338.24

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Solution

The fourth proportional to 187,221.12, 258,364.56 and 102,338.24 is: 141,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,221.12 : 258,364.56 = 102,338.24 : x
  2. Step 2: Convert to fraction form
    187,221.12/258,364.56 = 102,338.24/x
  3. Step 3: Cross multiply
    187,221.12x = 258,364.56 × 102,338.24
  4. Step 4: Simplify right side
    187,221.12x = 26,440,574,348.77
  5. Step 5: Solve for x
    x = 26,440,574,348.77/187,221.12
  6. Step 6: Final answer
    x = 141,226.45

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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.