Home / 103,120.50-142,284.69-60,683.70

Finding the Fourth Proportional to 103,120.50, 142,284.69 and 60,683.70

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Solution

The fourth proportional to 103,120.50, 142,284.69 and 60,683.70 is: 83,730.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,120.50 : 142,284.69 = 60,683.70 : x
  2. Step 2: Convert to fraction form
    103,120.50/142,284.69 = 60,683.70/x
  3. Step 3: Cross multiply
    103,120.50x = 142,284.69 × 60,683.70
  4. Step 4: Simplify right side
    103,120.50x = 8,634,361,442.55
  5. Step 5: Solve for x
    x = 8,634,361,442.55/103,120.50
  6. Step 6: Final answer
    x = 83,730.79

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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.