Home / 191,457.08-287,185.70-86,153.04

Finding the Fourth Proportional to 191,457.08, 287,185.70 and 86,153.04

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Solution

The fourth proportional to 191,457.08, 287,185.70 and 86,153.04 is: 129,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,457.08 : 287,185.70 = 86,153.04 : x
  2. Step 2: Convert to fraction form
    191,457.08/287,185.70 = 86,153.04/x
  3. Step 3: Cross multiply
    191,457.08x = 287,185.70 × 86,153.04
  4. Step 4: Simplify right side
    191,457.08x = 24,741,921,099.53
  5. Step 5: Solve for x
    x = 24,741,921,099.53/191,457.08
  6. Step 6: Final answer
    x = 129,229.60

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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.