Home / 113,265.49-156,075.87-87,616.03

Finding the Fourth Proportional to 113,265.49, 156,075.87 and 87,616.03

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Solution

The fourth proportional to 113,265.49, 156,075.87 and 87,616.03 is: 120,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,265.49 : 156,075.87 = 87,616.03 : x
  2. Step 2: Convert to fraction form
    113,265.49/156,075.87 = 87,616.03/x
  3. Step 3: Cross multiply
    113,265.49x = 156,075.87 × 87,616.03
  4. Step 4: Simplify right side
    113,265.49x = 13,674,748,108.20
  5. Step 5: Solve for x
    x = 13,674,748,108.20/113,265.49
  6. Step 6: Final answer
    x = 120,731.81

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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.