Home / 90,438.03-124,541.22-84,661.65

Finding the Fourth Proportional to 90,438.03, 124,541.22 and 84,661.65

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Solution

The fourth proportional to 90,438.03, 124,541.22 and 84,661.65 is: 116,586.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438.03 : 124,541.22 = 84,661.65 : x
  2. Step 2: Convert to fraction form
    90,438.03/124,541.22 = 84,661.65/x
  3. Step 3: Cross multiply
    90,438.03x = 124,541.22 × 84,661.65
  4. Step 4: Simplify right side
    90,438.03x = 10,543,865,178.21
  5. Step 5: Solve for x
    x = 10,543,865,178.21/90,438.03
  6. Step 6: Final answer
    x = 116,586.63

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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.