Home / 191,430.59-287,135.40-58,299.70

Finding the Fourth Proportional to 191,430.59, 287,135.40 and 58,299.70

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Solution

The fourth proportional to 191,430.59, 287,135.40 and 58,299.70 is: 87,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,430.59 : 287,135.40 = 58,299.70 : x
  2. Step 2: Convert to fraction form
    191,430.59/287,135.40 = 58,299.70/x
  3. Step 3: Cross multiply
    191,430.59x = 287,135.40 × 58,299.70
  4. Step 4: Simplify right side
    191,430.59x = 16,739,907,679.38
  5. Step 5: Solve for x
    x = 16,739,907,679.38/191,430.59
  6. Step 6: Final answer
    x = 87,446.36

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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.