Home / 134,097.12-185,087.28-77,500.32

Finding the Fourth Proportional to 134,097.12, 185,087.28 and 77,500.32

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Solution

The fourth proportional to 134,097.12, 185,087.28 and 77,500.32 is: 106,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,097.12 : 185,087.28 = 77,500.32 : x
  2. Step 2: Convert to fraction form
    134,097.12/185,087.28 = 77,500.32/x
  3. Step 3: Cross multiply
    134,097.12x = 185,087.28 × 77,500.32
  4. Step 4: Simplify right side
    134,097.12x = 14,344,323,427.93
  5. Step 5: Solve for x
    x = 14,344,323,427.93/134,097.12
  6. Step 6: Final answer
    x = 106,969.66

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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.