Home / 153,430.30-230,145.00-69,091.72

Finding the Fourth Proportional to 153,430.30, 230,145.00 and 69,091.72

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Solution

The fourth proportional to 153,430.30, 230,145.00 and 69,091.72 is: 103,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,430.30 : 230,145.00 = 69,091.72 : x
  2. Step 2: Convert to fraction form
    153,430.30/230,145.00 = 69,091.72/x
  3. Step 3: Cross multiply
    153,430.30x = 230,145.00 × 69,091.72
  4. Step 4: Simplify right side
    153,430.30x = 15,901,113,064.94
  5. Step 5: Solve for x
    x = 15,901,113,064.94/153,430.30
  6. Step 6: Final answer
    x = 103,637.37

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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.