Home / 137,808.54-190,196.58-84,124.80

Finding the Fourth Proportional to 137,808.54, 190,196.58 and 84,124.80

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Solution

The fourth proportional to 137,808.54, 190,196.58 and 84,124.80 is: 116,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,808.54 : 190,196.58 = 84,124.80 : x
  2. Step 2: Convert to fraction form
    137,808.54/190,196.58 = 84,124.80/x
  3. Step 3: Cross multiply
    137,808.54x = 190,196.58 × 84,124.80
  4. Step 4: Simplify right side
    137,808.54x = 16,000,249,253.18
  5. Step 5: Solve for x
    x = 16,000,249,253.18/137,808.54
  6. Step 6: Final answer
    x = 116,104.92

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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.