Home / 98,728.92-136,242.54-56,301.12

Finding the Fourth Proportional to 98,728.92, 136,242.54 and 56,301.12

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Solution

The fourth proportional to 98,728.92, 136,242.54 and 56,301.12 is: 77,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728.92 : 136,242.54 = 56,301.12 : x
  2. Step 2: Convert to fraction form
    98,728.92/136,242.54 = 56,301.12/x
  3. Step 3: Cross multiply
    98,728.92x = 136,242.54 × 56,301.12
  4. Step 4: Simplify right side
    98,728.92x = 7,670,607,593.64
  5. Step 5: Solve for x
    x = 7,670,607,593.64/98,728.92
  6. Step 6: Final answer
    x = 77,693.62

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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.