Home / 156,218.10-215,570.52-88,237.98

Finding the Fourth Proportional to 156,218.10, 215,570.52 and 88,237.98

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Solution

The fourth proportional to 156,218.10, 215,570.52 and 88,237.98 is: 121,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.10 : 215,570.52 = 88,237.98 : x
  2. Step 2: Convert to fraction form
    156,218.10/215,570.52 = 88,237.98/x
  3. Step 3: Cross multiply
    156,218.10x = 215,570.52 × 88,237.98
  4. Step 4: Simplify right side
    156,218.10x = 19,021,507,232.35
  5. Step 5: Solve for x
    x = 19,021,507,232.35/156,218.10
  6. Step 6: Final answer
    x = 121,762.51

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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.