Home / 156,024.50-215,312.64-84,403.49

Finding the Fourth Proportional to 156,024.50, 215,312.64 and 84,403.49

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Solution

The fourth proportional to 156,024.50, 215,312.64 and 84,403.49 is: 116,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,024.50 : 215,312.64 = 84,403.49 : x
  2. Step 2: Convert to fraction form
    156,024.50/215,312.64 = 84,403.49/x
  3. Step 3: Cross multiply
    156,024.50x = 215,312.64 × 84,403.49
  4. Step 4: Simplify right side
    156,024.50x = 18,173,138,257.11
  5. Step 5: Solve for x
    x = 18,173,138,257.11/156,024.50
  6. Step 6: Final answer
    x = 116,476.18

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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.