Home / 98,700.32-136,206.05-53,378.36

Finding the Fourth Proportional to 98,700.32, 136,206.05 and 53,378.36

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Solution

The fourth proportional to 98,700.32, 136,206.05 and 53,378.36 is: 73,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,700.32 : 136,206.05 = 53,378.36 : x
  2. Step 2: Convert to fraction form
    98,700.32/136,206.05 = 53,378.36/x
  3. Step 3: Cross multiply
    98,700.32x = 136,206.05 × 53,378.36
  4. Step 4: Simplify right side
    98,700.32x = 7,270,454,623.16
  5. Step 5: Solve for x
    x = 7,270,454,623.16/98,700.32
  6. Step 6: Final answer
    x = 73,661.92

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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.