Home / 156,075.45-215,384.87-88,095.30

Finding the Fourth Proportional to 156,075.45, 215,384.87 and 88,095.30

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Solution

The fourth proportional to 156,075.45, 215,384.87 and 88,095.30 is: 121,571.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,075.45 : 215,384.87 = 88,095.30 : x
  2. Step 2: Convert to fraction form
    156,075.45/215,384.87 = 88,095.30/x
  3. Step 3: Cross multiply
    156,075.45x = 215,384.87 × 88,095.30
  4. Step 4: Simplify right side
    156,075.45x = 18,974,394,297.63
  5. Step 5: Solve for x
    x = 18,974,394,297.63/156,075.45
  6. Step 6: Final answer
    x = 121,571.93

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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.