Home / 157,628-217,496.88-93,971.72

Finding the Fourth Proportional to 157,628, 217,496.88 and 93,971.72

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Solution

The fourth proportional to 157,628, 217,496.88 and 93,971.72 is: 129,663.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,628 : 217,496.88 = 93,971.72 : x
  2. Step 2: Convert to fraction form
    157,628/217,496.88 = 93,971.72/x
  3. Step 3: Cross multiply
    157,628x = 217,496.88 × 93,971.72
  4. Step 4: Simplify right side
    157,628x = 20,438,555,908.23
  5. Step 5: Solve for x
    x = 20,438,555,908.23/157,628
  6. Step 6: Final answer
    x = 129,663.23

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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.