Home / 125,877.70-173,706.10-72,125.33

Finding the Fourth Proportional to 125,877.70, 173,706.10 and 72,125.33

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Solution

The fourth proportional to 125,877.70, 173,706.10 and 72,125.33 is: 99,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,877.70 : 173,706.10 = 72,125.33 : x
  2. Step 2: Convert to fraction form
    125,877.70/173,706.10 = 72,125.33/x
  3. Step 3: Cross multiply
    125,877.70x = 173,706.10 × 72,125.33
  4. Step 4: Simplify right side
    125,877.70x = 12,528,610,039.46
  5. Step 5: Solve for x
    x = 12,528,610,039.46/125,877.70
  6. Step 6: Final answer
    x = 99,530.02

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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.