Home / 98,625.12-136,214.88-66,303.60

Finding the Fourth Proportional to 98,625.12, 136,214.88 and 66,303.60

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Solution

The fourth proportional to 98,625.12, 136,214.88 and 66,303.60 is: 91,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,625.12 : 136,214.88 = 66,303.60 : x
  2. Step 2: Convert to fraction form
    98,625.12/136,214.88 = 66,303.60/x
  3. Step 3: Cross multiply
    98,625.12x = 136,214.88 × 66,303.60
  4. Step 4: Simplify right side
    98,625.12x = 9,031,536,917.57
  5. Step 5: Solve for x
    x = 9,031,536,917.57/98,625.12
  6. Step 6: Final answer
    x = 91,574.41

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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.