Home / 156,121.34-215,447.40-84,501.95

Finding the Fourth Proportional to 156,121.34, 215,447.40 and 84,501.95

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Solution

The fourth proportional to 156,121.34, 215,447.40 and 84,501.95 is: 116,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,121.34 : 215,447.40 = 84,501.95 : x
  2. Step 2: Convert to fraction form
    156,121.34/215,447.40 = 84,501.95/x
  3. Step 3: Cross multiply
    156,121.34x = 215,447.40 × 84,501.95
  4. Step 4: Simplify right side
    156,121.34x = 18,205,724,345.19
  5. Step 5: Solve for x
    x = 18,205,724,345.19/156,121.34
  6. Step 6: Final answer
    x = 116,612.66

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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.