Home / 191,385.55-264,109.98-105,342.67

Finding the Fourth Proportional to 191,385.55, 264,109.98 and 105,342.67

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Solution

The fourth proportional to 191,385.55, 264,109.98 and 105,342.67 is: 145,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,385.55 : 264,109.98 = 105,342.67 : x
  2. Step 2: Convert to fraction form
    191,385.55/264,109.98 = 105,342.67/x
  3. Step 3: Cross multiply
    191,385.55x = 264,109.98 × 105,342.67
  4. Step 4: Simplify right side
    191,385.55x = 27,822,050,466.85
  5. Step 5: Solve for x
    x = 27,822,050,466.85/191,385.55
  6. Step 6: Final answer
    x = 145,371.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.