Home / 191,567.57-287,351.42-79,124.21

Finding the Fourth Proportional to 191,567.57, 287,351.42 and 79,124.21

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Solution

The fourth proportional to 191,567.57, 287,351.42 and 79,124.21 is: 118,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,567.57 : 287,351.42 = 79,124.21 : x
  2. Step 2: Convert to fraction form
    191,567.57/287,351.42 = 79,124.21/x
  3. Step 3: Cross multiply
    191,567.57x = 287,351.42 × 79,124.21
  4. Step 4: Simplify right side
    191,567.57x = 22,736,452,267.50
  5. Step 5: Solve for x
    x = 22,736,452,267.50/191,567.57
  6. Step 6: Final answer
    x = 118,686.33

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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.