Home / 125,837.18-173,662.80-72,125.67

Finding the Fourth Proportional to 125,837.18, 173,662.80 and 72,125.67

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Solution

The fourth proportional to 125,837.18, 173,662.80 and 72,125.67 is: 99,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,837.18 : 173,662.80 = 72,125.67 : x
  2. Step 2: Convert to fraction form
    125,837.18/173,662.80 = 72,125.67/x
  3. Step 3: Cross multiply
    125,837.18x = 173,662.80 × 72,125.67
  4. Step 4: Simplify right side
    125,837.18x = 12,525,546,184.84
  5. Step 5: Solve for x
    x = 12,525,546,184.84/125,837.18
  6. Step 6: Final answer
    x = 99,537.72

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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.