Home / 98,820.20-136,372.11-53,498.68

Finding the Fourth Proportional to 98,820.20, 136,372.11 and 53,498.68

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Solution

The fourth proportional to 98,820.20, 136,372.11 and 53,498.68 is: 73,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,820.20 : 136,372.11 = 53,498.68 : x
  2. Step 2: Convert to fraction form
    98,820.20/136,372.11 = 53,498.68/x
  3. Step 3: Cross multiply
    98,820.20x = 136,372.11 × 53,498.68
  4. Step 4: Simplify right side
    98,820.20x = 7,295,727,332.26
  5. Step 5: Solve for x
    x = 7,295,727,332.26/98,820.20
  6. Step 6: Final answer
    x = 73,828.30

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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.