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Finding the Fourth Proportional to 158,594.92, 218,840.81 and 90,616.30

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Solution

The fourth proportional to 158,594.92, 218,840.81 and 90,616.30 is: 125,038.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,594.92 : 218,840.81 = 90,616.30 : x
  2. Step 2: Convert to fraction form
    158,594.92/218,840.81 = 90,616.30/x
  3. Step 3: Cross multiply
    158,594.92x = 218,840.81 × 90,616.30
  4. Step 4: Simplify right side
    158,594.92x = 19,830,544,491.20
  5. Step 5: Solve for x
    x = 19,830,544,491.20/158,594.92
  6. Step 6: Final answer
    x = 125,038.96

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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.