Home / 187,019.60-258,087.98-102,136.68

Finding the Fourth Proportional to 187,019.60, 258,087.98 and 102,136.68

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Solution

The fourth proportional to 187,019.60, 258,087.98 and 102,136.68 is: 140,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,019.60 : 258,087.98 = 102,136.68 : x
  2. Step 2: Convert to fraction form
    187,019.60/258,087.98 = 102,136.68/x
  3. Step 3: Cross multiply
    187,019.60x = 258,087.98 × 102,136.68
  4. Step 4: Simplify right side
    187,019.60x = 26,360,249,425.11
  5. Step 5: Solve for x
    x = 26,360,249,425.11/187,019.60
  6. Step 6: Final answer
    x = 140,949.13

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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.