Home / 173,285.40-239,154.57-105,313.44

Finding the Fourth Proportional to 173,285.40, 239,154.57 and 105,313.44

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Solution

The fourth proportional to 173,285.40, 239,154.57 and 105,313.44 is: 145,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,285.40 : 239,154.57 = 105,313.44 : x
  2. Step 2: Convert to fraction form
    173,285.40/239,154.57 = 105,313.44/x
  3. Step 3: Cross multiply
    173,285.40x = 239,154.57 × 105,313.44
  4. Step 4: Simplify right side
    173,285.40x = 25,186,190,458.42
  5. Step 5: Solve for x
    x = 25,186,190,458.42/173,285.40
  6. Step 6: Final answer
    x = 145,345.14

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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.