Home / 128,037.22-176,767.05-92,319.46

Finding the Fourth Proportional to 128,037.22, 176,767.05 and 92,319.46

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Solution

The fourth proportional to 128,037.22, 176,767.05 and 92,319.46 is: 127,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,037.22 : 176,767.05 = 92,319.46 : x
  2. Step 2: Convert to fraction form
    128,037.22/176,767.05 = 92,319.46/x
  3. Step 3: Cross multiply
    128,037.22x = 176,767.05 × 92,319.46
  4. Step 4: Simplify right side
    128,037.22x = 16,319,038,601.79
  5. Step 5: Solve for x
    x = 16,319,038,601.79/128,037.22
  6. Step 6: Final answer
    x = 127,455.43

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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.