Home / 98,785.76-136,319.12-54,065.12

Finding the Fourth Proportional to 98,785.76, 136,319.12 and 54,065.12

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Solution

The fourth proportional to 98,785.76, 136,319.12 and 54,065.12 is: 74,607.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,785.76 : 136,319.12 = 54,065.12 : x
  2. Step 2: Convert to fraction form
    98,785.76/136,319.12 = 54,065.12/x
  3. Step 3: Cross multiply
    98,785.76x = 136,319.12 × 54,065.12
  4. Step 4: Simplify right side
    98,785.76x = 7,370,109,581.09
  5. Step 5: Solve for x
    x = 7,370,109,581.09/98,785.76
  6. Step 6: Final answer
    x = 74,607.00

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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.