Home / 156,039.93-215,235.75-102,328.29

Finding the Fourth Proportional to 156,039.93, 215,235.75 and 102,328.29

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Solution

The fourth proportional to 156,039.93, 215,235.75 and 102,328.29 is: 141,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,039.93 : 215,235.75 = 102,328.29 : x
  2. Step 2: Convert to fraction form
    156,039.93/215,235.75 = 102,328.29/x
  3. Step 3: Cross multiply
    156,039.93x = 215,235.75 × 102,328.29
  4. Step 4: Simplify right side
    156,039.93x = 22,024,706,244.37
  5. Step 5: Solve for x
    x = 22,024,706,244.37/156,039.93
  6. Step 6: Final answer
    x = 141,147.89

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1.5x scale

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.