Home / 153,462.80-211,811.34-103,132.64

Finding the Fourth Proportional to 153,462.80, 211,811.34 and 103,132.64

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Solution

The fourth proportional to 153,462.80, 211,811.34 and 103,132.64 is: 142,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,462.80 : 211,811.34 = 103,132.64 : x
  2. Step 2: Convert to fraction form
    153,462.80/211,811.34 = 103,132.64/x
  3. Step 3: Cross multiply
    153,462.80x = 211,811.34 × 103,132.64
  4. Step 4: Simplify right side
    153,462.80x = 21,844,662,676.14
  5. Step 5: Solve for x
    x = 21,844,662,676.14/153,462.80
  6. Step 6: Final answer
    x = 142,345.00

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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.