Home / 197,376.87-272,410.74-129,590.45

Finding the Fourth Proportional to 197,376.87, 272,410.74 and 129,590.45

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Solution

The fourth proportional to 197,376.87, 272,410.74 and 129,590.45 is: 178,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,376.87 : 272,410.74 = 129,590.45 : x
  2. Step 2: Convert to fraction form
    197,376.87/272,410.74 = 129,590.45/x
  3. Step 3: Cross multiply
    197,376.87x = 272,410.74 × 129,590.45
  4. Step 4: Simplify right side
    197,376.87x = 35,301,829,019.38
  5. Step 5: Solve for x
    x = 35,301,829,019.38/197,376.87
  6. Step 6: Final answer
    x = 178,854.94

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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.