Home / 158,299.92-218,433.61-90,312.98

Finding the Fourth Proportional to 158,299.92, 218,433.61 and 90,312.98

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Solution

The fourth proportional to 158,299.92, 218,433.61 and 90,312.98 is: 124,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,299.92 : 218,433.61 = 90,312.98 : x
  2. Step 2: Convert to fraction form
    158,299.92/218,433.61 = 90,312.98/x
  3. Step 3: Cross multiply
    158,299.92x = 218,433.61 × 90,312.98
  4. Step 4: Simplify right side
    158,299.92x = 19,727,389,271.98
  5. Step 5: Solve for x
    x = 19,727,389,271.98/158,299.92
  6. Step 6: Final answer
    x = 124,620.34

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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.