Home / 128,051.67-192,077.95-39,305.18

Finding the Fourth Proportional to 128,051.67, 192,077.95 and 39,305.18

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Solution

The fourth proportional to 128,051.67, 192,077.95 and 39,305.18 is: 58,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,051.67 : 192,077.95 = 39,305.18 : x
  2. Step 2: Convert to fraction form
    128,051.67/192,077.95 = 39,305.18/x
  3. Step 3: Cross multiply
    128,051.67x = 192,077.95 × 39,305.18
  4. Step 4: Simplify right side
    128,051.67x = 7,549,657,438.39
  5. Step 5: Solve for x
    x = 7,549,657,438.39/128,051.67
  6. Step 6: Final answer
    x = 58,957.90

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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.