Home / 119,147.56-164,382.51-76,152.21

Finding the Fourth Proportional to 119,147.56, 164,382.51 and 76,152.21

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Solution

The fourth proportional to 119,147.56, 164,382.51 and 76,152.21 is: 105,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,147.56 : 164,382.51 = 76,152.21 : x
  2. Step 2: Convert to fraction form
    119,147.56/164,382.51 = 76,152.21/x
  3. Step 3: Cross multiply
    119,147.56x = 164,382.51 × 76,152.21
  4. Step 4: Simplify right side
    119,147.56x = 12,518,091,421.85
  5. Step 5: Solve for x
    x = 12,518,091,421.85/119,147.56
  6. Step 6: Final answer
    x = 105,063.77

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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.