Home / 156,077.11-215,386.98-84,457.14

Finding the Fourth Proportional to 156,077.11, 215,386.98 and 84,457.14

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Solution

The fourth proportional to 156,077.11, 215,386.98 and 84,457.14 is: 116,551.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,077.11 : 215,386.98 = 84,457.14 : x
  2. Step 2: Convert to fraction form
    156,077.11/215,386.98 = 84,457.14/x
  3. Step 3: Cross multiply
    156,077.11x = 215,386.98 × 84,457.14
  4. Step 4: Simplify right side
    156,077.11x = 18,190,968,324.04
  5. Step 5: Solve for x
    x = 18,190,968,324.04/156,077.11
  6. Step 6: Final answer
    x = 116,551.16

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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.