Home / 125,104.55-172,644.35-68,515.92

Finding the Fourth Proportional to 125,104.55, 172,644.35 and 68,515.92

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Solution

The fourth proportional to 125,104.55, 172,644.35 and 68,515.92 is: 94,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,104.55 : 172,644.35 = 68,515.92 : x
  2. Step 2: Convert to fraction form
    125,104.55/172,644.35 = 68,515.92/x
  3. Step 3: Cross multiply
    125,104.55x = 172,644.35 × 68,515.92
  4. Step 4: Simplify right side
    125,104.55x = 11,828,886,130.47
  5. Step 5: Solve for x
    x = 11,828,886,130.47/125,104.55
  6. Step 6: Final answer
    x = 94,552.01

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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.