Home / 156,430.64-215,861.00-88,438.18

Finding the Fourth Proportional to 156,430.64, 215,861.00 and 88,438.18

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Solution

The fourth proportional to 156,430.64, 215,861.00 and 88,438.18 is: 122,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,430.64 : 215,861.00 = 88,438.18 : x
  2. Step 2: Convert to fraction form
    156,430.64/215,861.00 = 88,438.18/x
  3. Step 3: Cross multiply
    156,430.64x = 215,861.00 × 88,438.18
  4. Step 4: Simplify right side
    156,430.64x = 19,090,353,893.34
  5. Step 5: Solve for x
    x = 19,090,353,893.34/156,430.64
  6. Step 6: Final answer
    x = 122,037.18

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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.