Home / 187,089.24-258,171-102,206.28

Finding the Fourth Proportional to 187,089.24, 258,171 and 102,206.28

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Solution

The fourth proportional to 187,089.24, 258,171 and 102,206.28 is: 141,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,089.24 : 258,171 = 102,206.28 : x
  2. Step 2: Convert to fraction form
    187,089.24/258,171 = 102,206.28/x
  3. Step 3: Cross multiply
    187,089.24x = 258,171 × 102,206.28
  4. Step 4: Simplify right side
    187,089.24x = 26,386,697,513.88
  5. Step 5: Solve for x
    x = 26,386,697,513.88/187,089.24
  6. Step 6: Final answer
    x = 141,038.03

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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.