Home / 156,133.08-215,464.32-88,153.02

Finding the Fourth Proportional to 156,133.08, 215,464.32 and 88,153.02

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Solution

The fourth proportional to 156,133.08, 215,464.32 and 88,153.02 is: 121,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,133.08 : 215,464.32 = 88,153.02 : x
  2. Step 2: Convert to fraction form
    156,133.08/215,464.32 = 88,153.02/x
  3. Step 3: Cross multiply
    156,133.08x = 215,464.32 × 88,153.02
  4. Step 4: Simplify right side
    156,133.08x = 18,993,830,510.25
  5. Step 5: Solve for x
    x = 18,993,830,510.25/156,133.08
  6. Step 6: Final answer
    x = 121,651.55

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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.