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Finding the Fourth Proportional to 158,298.63, 218,452.13 and 91,230.63

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Solution

The fourth proportional to 158,298.63, 218,452.13 and 91,230.63 is: 125,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,298.63 : 218,452.13 = 91,230.63 : x
  2. Step 2: Convert to fraction form
    158,298.63/218,452.13 = 91,230.63/x
  3. Step 3: Cross multiply
    158,298.63x = 218,452.13 × 91,230.63
  4. Step 4: Simplify right side
    158,298.63x = 19,929,525,444.74
  5. Step 5: Solve for x
    x = 19,929,525,444.74/158,298.63
  6. Step 6: Final answer
    x = 125,898.28

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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.