Home / 158,152.73-218,245.34-90,191.60

Finding the Fourth Proportional to 158,152.73, 218,245.34 and 90,191.60

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Solution

The fourth proportional to 158,152.73, 218,245.34 and 90,191.60 is: 124,461.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,152.73 : 218,245.34 = 90,191.60 : x
  2. Step 2: Convert to fraction form
    158,152.73/218,245.34 = 90,191.60/x
  3. Step 3: Cross multiply
    158,152.73x = 218,245.34 × 90,191.60
  4. Step 4: Simplify right side
    158,152.73x = 19,683,894,864.96
  5. Step 5: Solve for x
    x = 19,683,894,864.96/158,152.73
  6. Step 6: Final answer
    x = 124,461.31

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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.