Home / 145,108.30-217,663.80-43,907.15

Finding the Fourth Proportional to 145,108.30, 217,663.80 and 43,907.15

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Solution

The fourth proportional to 145,108.30, 217,663.80 and 43,907.15 is: 65,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,108.30 : 217,663.80 = 43,907.15 : x
  2. Step 2: Convert to fraction form
    145,108.30/217,663.80 = 43,907.15/x
  3. Step 3: Cross multiply
    145,108.30x = 217,663.80 × 43,907.15
  4. Step 4: Simplify right side
    145,108.30x = 9,556,995,808.32
  5. Step 5: Solve for x
    x = 9,556,995,808.32/145,108.30
  6. Step 6: Final answer
    x = 65,861.13

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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.