Home / 153,148.62-211,314.12-89,474.11

Finding the Fourth Proportional to 153,148.62, 211,314.12 and 89,474.11

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Solution

The fourth proportional to 153,148.62, 211,314.12 and 89,474.11 is: 123,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,148.62 : 211,314.12 = 89,474.11 : x
  2. Step 2: Convert to fraction form
    153,148.62/211,314.12 = 89,474.11/x
  3. Step 3: Cross multiply
    153,148.62x = 211,314.12 × 89,474.11
  4. Step 4: Simplify right side
    153,148.62x = 18,907,142,817.43
  5. Step 5: Solve for x
    x = 18,907,142,817.43/153,148.62
  6. Step 6: Final answer
    x = 123,456.18

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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.