Home / 102,530.80-153,741.36-52,590.48

Finding the Fourth Proportional to 102,530.80, 153,741.36 and 52,590.48

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Solution

The fourth proportional to 102,530.80, 153,741.36 and 52,590.48 is: 78,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,530.80 : 153,741.36 = 52,590.48 : x
  2. Step 2: Convert to fraction form
    102,530.80/153,741.36 = 52,590.48/x
  3. Step 3: Cross multiply
    102,530.80x = 153,741.36 × 52,590.48
  4. Step 4: Simplify right side
    102,530.80x = 8,085,331,918.25
  5. Step 5: Solve for x
    x = 8,085,331,918.25/102,530.80
  6. Step 6: Final answer
    x = 78,857.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.