Home / 91,195.08-136,840.77-64,712.21

Finding the Fourth Proportional to 91,195.08, 136,840.77 and 64,712.21

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Solution

The fourth proportional to 91,195.08, 136,840.77 and 64,712.21 is: 97,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,195.08 : 136,840.77 = 64,712.21 : x
  2. Step 2: Convert to fraction form
    91,195.08/136,840.77 = 64,712.21/x
  3. Step 3: Cross multiply
    91,195.08x = 136,840.77 × 64,712.21
  4. Step 4: Simplify right side
    91,195.08x = 8,855,267,960.60
  5. Step 5: Solve for x
    x = 8,855,267,960.60/91,195.08
  6. Step 6: Final answer
    x = 97,102.47

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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.