Home / 98,645.87-136,139.64-60,405.23

Finding the Fourth Proportional to 98,645.87, 136,139.64 and 60,405.23

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Solution

The fourth proportional to 98,645.87, 136,139.64 and 60,405.23 is: 83,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,645.87 : 136,139.64 = 60,405.23 : x
  2. Step 2: Convert to fraction form
    98,645.87/136,139.64 = 60,405.23/x
  3. Step 3: Cross multiply
    98,645.87x = 136,139.64 × 60,405.23
  4. Step 4: Simplify right side
    98,645.87x = 8,223,546,266.32
  5. Step 5: Solve for x
    x = 8,223,546,266.32/98,645.87
  6. Step 6: Final answer
    x = 83,364.32

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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.