Home / 122,038.90-182,316.21-78,993.68

Finding the Fourth Proportional to 122,038.90, 182,316.21 and 78,993.68

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Solution

The fourth proportional to 122,038.90, 182,316.21 and 78,993.68 is: 118,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,038.90 : 182,316.21 = 78,993.68 : x
  2. Step 2: Convert to fraction form
    122,038.90/182,316.21 = 78,993.68/x
  3. Step 3: Cross multiply
    122,038.90x = 182,316.21 × 78,993.68
  4. Step 4: Simplify right side
    122,038.90x = 14,401,828,724.70
  5. Step 5: Solve for x
    x = 14,401,828,724.70/122,038.90
  6. Step 6: Final answer
    x = 118,010.15

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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.