Home / 134,171.08-185,158.25-76,810.17

Finding the Fourth Proportional to 134,171.08, 185,158.25 and 76,810.17

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Solution

The fourth proportional to 134,171.08, 185,158.25 and 76,810.17 is: 105,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,171.08 : 185,158.25 = 76,810.17 : x
  2. Step 2: Convert to fraction form
    134,171.08/185,158.25 = 76,810.17/x
  3. Step 3: Cross multiply
    134,171.08x = 185,158.25 × 76,810.17
  4. Step 4: Simplify right side
    134,171.08x = 14,222,037,689.79
  5. Step 5: Solve for x
    x = 14,222,037,689.79/134,171.08
  6. Step 6: Final answer
    x = 105,999.28

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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.