Home / 191,457.36-287,186.08-86,153.30

Finding the Fourth Proportional to 191,457.36, 287,186.08 and 86,153.30

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Solution

The fourth proportional to 191,457.36, 287,186.08 and 86,153.30 is: 129,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,457.36 : 287,186.08 = 86,153.30 : x
  2. Step 2: Convert to fraction form
    191,457.36/287,186.08 = 86,153.30/x
  3. Step 3: Cross multiply
    191,457.36x = 287,186.08 × 86,153.30
  4. Step 4: Simplify right side
    191,457.36x = 24,742,028,506.06
  5. Step 5: Solve for x
    x = 24,742,028,506.06/191,457.36
  6. Step 6: Final answer
    x = 129,229.97

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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.