Home / 82,210.19-123,214.14-65,501.51

Finding the Fourth Proportional to 82,210.19, 123,214.14 and 65,501.51

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Solution

The fourth proportional to 82,210.19, 123,214.14 and 65,501.51 is: 98,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,210.19 : 123,214.14 = 65,501.51 : x
  2. Step 2: Convert to fraction form
    82,210.19/123,214.14 = 65,501.51/x
  3. Step 3: Cross multiply
    82,210.19x = 123,214.14 × 65,501.51
  4. Step 4: Simplify right side
    82,210.19x = 8,070,711,607.28
  5. Step 5: Solve for x
    x = 8,070,711,607.28/82,210.19
  6. Step 6: Final answer
    x = 98,171.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.