Home / 187,579.15-258,883.88-106,988.20

Finding the Fourth Proportional to 187,579.15, 258,883.88 and 106,988.20

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Solution

The fourth proportional to 187,579.15, 258,883.88 and 106,988.20 is: 147,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,579.15 : 258,883.88 = 106,988.20 : x
  2. Step 2: Convert to fraction form
    187,579.15/258,883.88 = 106,988.20/x
  3. Step 3: Cross multiply
    187,579.15x = 258,883.88 × 106,988.20
  4. Step 4: Simplify right side
    187,579.15x = 27,697,519,148.07
  5. Step 5: Solve for x
    x = 27,697,519,148.07/187,579.15
  6. Step 6: Final answer
    x = 147,657.77

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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.