Home / 90,312.28-135,601.06-88,717.66

Finding the Fourth Proportional to 90,312.28, 135,601.06 and 88,717.66

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Solution

The fourth proportional to 90,312.28, 135,601.06 and 88,717.66 is: 133,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,312.28 : 135,601.06 = 88,717.66 : x
  2. Step 2: Convert to fraction form
    90,312.28/135,601.06 = 88,717.66/x
  3. Step 3: Cross multiply
    90,312.28x = 135,601.06 × 88,717.66
  4. Step 4: Simplify right side
    90,312.28x = 12,030,208,736.72
  5. Step 5: Solve for x
    x = 12,030,208,736.72/90,312.28
  6. Step 6: Final answer
    x = 133,206.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.