Home / 102,090.24-153,133.44-55,638.72

Finding the Fourth Proportional to 102,090.24, 153,133.44 and 55,638.72

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Solution

The fourth proportional to 102,090.24, 153,133.44 and 55,638.72 is: 83,457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,090.24 : 153,133.44 = 55,638.72 : x
  2. Step 2: Convert to fraction form
    102,090.24/153,133.44 = 55,638.72/x
  3. Step 3: Cross multiply
    102,090.24x = 153,133.44 × 55,638.72
  4. Step 4: Simplify right side
    102,090.24x = 8,520,148,590.80
  5. Step 5: Solve for x
    x = 8,520,148,590.80/102,090.24
  6. Step 6: Final answer
    x = 83,457.03

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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.