Home / 187,009.60-258,075.30-102,129.16

Finding the Fourth Proportional to 187,009.60, 258,075.30 and 102,129.16

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Solution

The fourth proportional to 187,009.60, 258,075.30 and 102,129.16 is: 140,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,009.60 : 258,075.30 = 102,129.16 : x
  2. Step 2: Convert to fraction form
    187,009.60/258,075.30 = 102,129.16/x
  3. Step 3: Cross multiply
    187,009.60x = 258,075.30 × 102,129.16
  4. Step 4: Simplify right side
    187,009.60x = 26,357,013,605.75
  5. Step 5: Solve for x
    x = 26,357,013,605.75/187,009.60
  6. Step 6: Final answer
    x = 140,939.36

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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.