Home / 88,513.10-133,028.85-77,108.30

Finding the Fourth Proportional to 88,513.10, 133,028.85 and 77,108.30

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Solution

The fourth proportional to 88,513.10, 133,028.85 and 77,108.30 is: 115,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,513.10 : 133,028.85 = 77,108.30 : x
  2. Step 2: Convert to fraction form
    88,513.10/133,028.85 = 77,108.30/x
  3. Step 3: Cross multiply
    88,513.10x = 133,028.85 × 77,108.30
  4. Step 4: Simplify right side
    88,513.10x = 10,257,628,474.46
  5. Step 5: Solve for x
    x = 10,257,628,474.46/88,513.10
  6. Step 6: Final answer
    x = 115,888.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.