Home / 187,389.28-258,597.12-102,506.32

Finding the Fourth Proportional to 187,389.28, 258,597.12 and 102,506.32

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Solution

The fourth proportional to 187,389.28, 258,597.12 and 102,506.32 is: 141,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,389.28 : 258,597.12 = 102,506.32 : x
  2. Step 2: Convert to fraction form
    187,389.28/258,597.12 = 102,506.32/x
  3. Step 3: Cross multiply
    187,389.28x = 258,597.12 × 102,506.32
  4. Step 4: Simplify right side
    187,389.28x = 26,507,839,133.80
  5. Step 5: Solve for x
    x = 26,507,839,133.80/187,389.28
  6. Step 6: Final answer
    x = 141,458.67

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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.