Home / 156,298.80-215,784.36-102,677.34

Finding the Fourth Proportional to 156,298.80, 215,784.36 and 102,677.34

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Solution

The fourth proportional to 156,298.80, 215,784.36 and 102,677.34 is: 141,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,298.80 : 215,784.36 = 102,677.34 : x
  2. Step 2: Convert to fraction form
    156,298.80/215,784.36 = 102,677.34/x
  3. Step 3: Cross multiply
    156,298.80x = 215,784.36 × 102,677.34
  4. Step 4: Simplify right side
    156,298.80x = 22,156,164,098.40
  5. Step 5: Solve for x
    x = 22,156,164,098.40/156,298.80
  6. Step 6: Final answer
    x = 141,755.18

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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.