Home / 176,501.28-243,892.08-128,671.20

Finding the Fourth Proportional to 176,501.28, 243,892.08 and 128,671.20

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Solution

The fourth proportional to 176,501.28, 243,892.08 and 128,671.20 is: 177,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,501.28 : 243,892.08 = 128,671.20 : x
  2. Step 2: Convert to fraction form
    176,501.28/243,892.08 = 128,671.20/x
  3. Step 3: Cross multiply
    176,501.28x = 243,892.08 × 128,671.20
  4. Step 4: Simplify right side
    176,501.28x = 31,381,886,604.10
  5. Step 5: Solve for x
    x = 31,381,886,604.10/176,501.28
  6. Step 6: Final answer
    x = 177,799.77

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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.