Home / 109,513.12-151,127.90-61,766.32

Finding the Fourth Proportional to 109,513.12, 151,127.90 and 61,766.32

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Solution

The fourth proportional to 109,513.12, 151,127.90 and 61,766.32 is: 85,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,513.12 : 151,127.90 = 61,766.32 : x
  2. Step 2: Convert to fraction form
    109,513.12/151,127.90 = 61,766.32/x
  3. Step 3: Cross multiply
    109,513.12x = 151,127.90 × 61,766.32
  4. Step 4: Simplify right side
    109,513.12x = 9,334,614,232.33
  5. Step 5: Solve for x
    x = 9,334,614,232.33/109,513.12
  6. Step 6: Final answer
    x = 85,237.41

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1.5x scale

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.