Home / 122,040.91-182,319.20-78,995.68

Finding the Fourth Proportional to 122,040.91, 182,319.20 and 78,995.68

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Solution

The fourth proportional to 122,040.91, 182,319.20 and 78,995.68 is: 118,013.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,040.91 : 182,319.20 = 78,995.68 : x
  2. Step 2: Convert to fraction form
    122,040.91/182,319.20 = 78,995.68/x
  3. Step 3: Cross multiply
    122,040.91x = 182,319.20 × 78,995.68
  4. Step 4: Simplify right side
    122,040.91x = 14,402,429,181.06
  5. Step 5: Solve for x
    x = 14,402,429,181.06/122,040.91
  6. Step 6: Final answer
    x = 118,013.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.