Home / 125,829.60-173,669.72-72,150.90

Finding the Fourth Proportional to 125,829.60, 173,669.72 and 72,150.90

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Solution

The fourth proportional to 125,829.60, 173,669.72 and 72,150.90 is: 99,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,829.60 : 173,669.72 = 72,150.90 : x
  2. Step 2: Convert to fraction form
    125,829.60/173,669.72 = 72,150.90/x
  3. Step 3: Cross multiply
    125,829.60x = 173,669.72 × 72,150.90
  4. Step 4: Simplify right side
    125,829.60x = 12,530,426,239.99
  5. Step 5: Solve for x
    x = 12,530,426,239.99/125,829.60
  6. Step 6: Final answer
    x = 99,582.50

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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.