Home / 187,010.10-258,075.99-102,129.66

Finding the Fourth Proportional to 187,010.10, 258,075.99 and 102,129.66

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Solution

The fourth proportional to 187,010.10, 258,075.99 and 102,129.66 is: 140,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,010.10 : 258,075.99 = 102,129.66 : x
  2. Step 2: Convert to fraction form
    187,010.10/258,075.99 = 102,129.66/x
  3. Step 3: Cross multiply
    187,010.10x = 258,075.99 × 102,129.66
  4. Step 4: Simplify right side
    187,010.10x = 26,357,213,112.86
  5. Step 5: Solve for x
    x = 26,357,213,112.86/187,010.10
  6. Step 6: Final answer
    x = 140,940.05

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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.