Home / 76,154.16-113,686.08-66,192.36

Finding the Fourth Proportional to 76,154.16, 113,686.08 and 66,192.36

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Solution

The fourth proportional to 76,154.16, 113,686.08 and 66,192.36 is: 98,814.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,154.16 : 113,686.08 = 66,192.36 : x
  2. Step 2: Convert to fraction form
    76,154.16/113,686.08 = 66,192.36/x
  3. Step 3: Cross multiply
    76,154.16x = 113,686.08 × 66,192.36
  4. Step 4: Simplify right side
    76,154.16x = 7,525,149,934.35
  5. Step 5: Solve for x
    x = 7,525,149,934.35/76,154.16
  6. Step 6: Final answer
    x = 98,814.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.