Home / 125,875.60-188,813.40-76,109.20

Finding the Fourth Proportional to 125,875.60, 188,813.40 and 76,109.20

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Solution

The fourth proportional to 125,875.60, 188,813.40 and 76,109.20 is: 114,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,875.60 : 188,813.40 = 76,109.20 : x
  2. Step 2: Convert to fraction form
    125,875.60/188,813.40 = 76,109.20/x
  3. Step 3: Cross multiply
    125,875.60x = 188,813.40 × 76,109.20
  4. Step 4: Simplify right side
    125,875.60x = 14,370,436,823.28
  5. Step 5: Solve for x
    x = 14,370,436,823.28/125,875.60
  6. Step 6: Final answer
    x = 114,163.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.