Home / 116,350.06-160,623.90-78,309.58

Finding the Fourth Proportional to 116,350.06, 160,623.90 and 78,309.58

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Solution

The fourth proportional to 116,350.06, 160,623.90 and 78,309.58 is: 108,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,350.06 : 160,623.90 = 78,309.58 : x
  2. Step 2: Convert to fraction form
    116,350.06/160,623.90 = 78,309.58/x
  3. Step 3: Cross multiply
    116,350.06x = 160,623.90 × 78,309.58
  4. Step 4: Simplify right side
    116,350.06x = 12,578,390,146.96
  5. Step 5: Solve for x
    x = 12,578,390,146.96/116,350.06
  6. Step 6: Final answer
    x = 108,108.15

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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.