Home / 98,815.23-136,359.85-57,973.68

Finding the Fourth Proportional to 98,815.23, 136,359.85 and 57,973.68

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Solution

The fourth proportional to 98,815.23, 136,359.85 and 57,973.68 is: 80,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,815.23 : 136,359.85 = 57,973.68 : x
  2. Step 2: Convert to fraction form
    98,815.23/136,359.85 = 57,973.68/x
  3. Step 3: Cross multiply
    98,815.23x = 136,359.85 × 57,973.68
  4. Step 4: Simplify right side
    98,815.23x = 7,905,282,308.75
  5. Step 5: Solve for x
    x = 7,905,282,308.75/98,815.23
  6. Step 6: Final answer
    x = 80,000.65

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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.