Home / 191,700.13-287,355.39-79,441.42

Finding the Fourth Proportional to 191,700.13, 287,355.39 and 79,441.42

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Solution

The fourth proportional to 191,700.13, 287,355.39 and 79,441.42 is: 119,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,700.13 : 287,355.39 = 79,441.42 : x
  2. Step 2: Convert to fraction form
    191,700.13/287,355.39 = 79,441.42/x
  3. Step 3: Cross multiply
    191,700.13x = 287,355.39 × 79,441.42
  4. Step 4: Simplify right side
    191,700.13x = 22,827,920,226.25
  5. Step 5: Solve for x
    x = 22,827,920,226.25/191,700.13
  6. Step 6: Final answer
    x = 119,081.40

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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.