Home / 156,446.95-215,817.31-98,989.45

Finding the Fourth Proportional to 156,446.95, 215,817.31 and 98,989.45

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Solution

The fourth proportional to 156,446.95, 215,817.31 and 98,989.45 is: 136,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,446.95 : 215,817.31 = 98,989.45 : x
  2. Step 2: Convert to fraction form
    156,446.95/215,817.31 = 98,989.45/x
  3. Step 3: Cross multiply
    156,446.95x = 215,817.31 × 98,989.45
  4. Step 4: Simplify right side
    156,446.95x = 21,363,636,817.38
  5. Step 5: Solve for x
    x = 21,363,636,817.38/156,446.95
  6. Step 6: Final answer
    x = 136,555.15

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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.