Home / 125,567.58-173,328.75-83,139.78

Finding the Fourth Proportional to 125,567.58, 173,328.75 and 83,139.78

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Solution

The fourth proportional to 125,567.58, 173,328.75 and 83,139.78 is: 114,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,567.58 : 173,328.75 = 83,139.78 : x
  2. Step 2: Convert to fraction form
    125,567.58/173,328.75 = 83,139.78/x
  3. Step 3: Cross multiply
    125,567.58x = 173,328.75 × 83,139.78
  4. Step 4: Simplify right side
    125,567.58x = 14,410,514,142.68
  5. Step 5: Solve for x
    x = 14,410,514,142.68/125,567.58
  6. Step 6: Final answer
    x = 114,763.02

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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.