Home / 90,427.23-134,787.87-83,698.56

Finding the Fourth Proportional to 90,427.23, 134,787.87 and 83,698.56

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Solution

The fourth proportional to 90,427.23, 134,787.87 and 83,698.56 is: 124,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,427.23 : 134,787.87 = 83,698.56 : x
  2. Step 2: Convert to fraction form
    90,427.23/134,787.87 = 83,698.56/x
  3. Step 3: Cross multiply
    90,427.23x = 134,787.87 × 83,698.56
  4. Step 4: Simplify right side
    90,427.23x = 11,281,550,624.47
  5. Step 5: Solve for x
    x = 11,281,550,624.47/90,427.23
  6. Step 6: Final answer
    x = 124,758.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.