Home / 116,511.15-160,700.18-76,160.19

Finding the Fourth Proportional to 116,511.15, 160,700.18 and 76,160.19

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Solution

The fourth proportional to 116,511.15, 160,700.18 and 76,160.19 is: 105,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,511.15 : 160,700.18 = 76,160.19 : x
  2. Step 2: Convert to fraction form
    116,511.15/160,700.18 = 76,160.19/x
  3. Step 3: Cross multiply
    116,511.15x = 160,700.18 × 76,160.19
  4. Step 4: Simplify right side
    116,511.15x = 12,238,955,861.03
  5. Step 5: Solve for x
    x = 12,238,955,861.03/116,511.15
  6. Step 6: Final answer
    x = 105,045.36

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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.