Home / 153,148.60-211,314.09-89,474.10

Finding the Fourth Proportional to 153,148.60, 211,314.09 and 89,474.10

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Solution

The fourth proportional to 153,148.60, 211,314.09 and 89,474.10 is: 123,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,148.60 : 211,314.09 = 89,474.10 : x
  2. Step 2: Convert to fraction form
    153,148.60/211,314.09 = 89,474.10/x
  3. Step 3: Cross multiply
    153,148.60x = 211,314.09 × 89,474.10
  4. Step 4: Simplify right side
    153,148.60x = 18,907,137,563.17
  5. Step 5: Solve for x
    x = 18,907,137,563.17/153,148.60
  6. Step 6: Final answer
    x = 123,456.16

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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.