Home / 156,421.08-215,804.52-102,735.18

Finding the Fourth Proportional to 156,421.08, 215,804.52 and 102,735.18

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Solution

The fourth proportional to 156,421.08, 215,804.52 and 102,735.18 is: 141,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,421.08 : 215,804.52 = 102,735.18 : x
  2. Step 2: Convert to fraction form
    156,421.08/215,804.52 = 102,735.18/x
  3. Step 3: Cross multiply
    156,421.08x = 215,804.52 × 102,735.18
  4. Step 4: Simplify right side
    156,421.08x = 22,170,716,207.01
  5. Step 5: Solve for x
    x = 22,170,716,207.01/156,421.08
  6. Step 6: Final answer
    x = 141,737.39

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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.