Home / 191,420.62-287,108.96-51,190.18

Finding the Fourth Proportional to 191,420.62, 287,108.96 and 51,190.18

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Solution

The fourth proportional to 191,420.62, 287,108.96 and 51,190.18 is: 76,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,420.62 : 287,108.96 = 51,190.18 : x
  2. Step 2: Convert to fraction form
    191,420.62/287,108.96 = 51,190.18/x
  3. Step 3: Cross multiply
    191,420.62x = 287,108.96 × 51,190.18
  4. Step 4: Simplify right side
    191,420.62x = 14,697,158,368.29
  5. Step 5: Solve for x
    x = 14,697,158,368.29/191,420.62
  6. Step 6: Final answer
    x = 76,779.39

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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.