Home / 137,899.60-190,295.04-76,642.94

Finding the Fourth Proportional to 137,899.60, 190,295.04 and 76,642.94

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Solution

The fourth proportional to 137,899.60, 190,295.04 and 76,642.94 is: 105,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,899.60 : 190,295.04 = 76,642.94 : x
  2. Step 2: Convert to fraction form
    137,899.60/190,295.04 = 76,642.94/x
  3. Step 3: Cross multiply
    137,899.60x = 190,295.04 × 76,642.94
  4. Step 4: Simplify right side
    137,899.60x = 14,584,771,333.02
  5. Step 5: Solve for x
    x = 14,584,771,333.02/137,899.60
  6. Step 6: Final answer
    x = 105,763.70

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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.