Home / 98,814.81-136,427.41-64,883.55

Finding the Fourth Proportional to 98,814.81, 136,427.41 and 64,883.55

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Solution

The fourth proportional to 98,814.81, 136,427.41 and 64,883.55 is: 89,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,814.81 : 136,427.41 = 64,883.55 : x
  2. Step 2: Convert to fraction form
    98,814.81/136,427.41 = 64,883.55/x
  3. Step 3: Cross multiply
    98,814.81x = 136,427.41 × 64,883.55
  4. Step 4: Simplify right side
    98,814.81x = 8,851,894,449.90
  5. Step 5: Solve for x
    x = 8,851,894,449.90/98,814.81
  6. Step 6: Final answer
    x = 89,580.64

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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.