Home / 156,444.45-215,813.87-98,986.95

Finding the Fourth Proportional to 156,444.45, 215,813.87 and 98,986.95

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Solution

The fourth proportional to 156,444.45, 215,813.87 and 98,986.95 is: 136,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,444.45 : 215,813.87 = 98,986.95 : x
  2. Step 2: Convert to fraction form
    156,444.45/215,813.87 = 98,986.95/x
  3. Step 3: Cross multiply
    156,444.45x = 215,813.87 × 98,986.95
  4. Step 4: Simplify right side
    156,444.45x = 21,362,756,264.06
  5. Step 5: Solve for x
    x = 21,362,756,264.06/156,444.45
  6. Step 6: Final answer
    x = 136,551.70

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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.