Home / 125,838.18-173,664.18-72,126.67

Finding the Fourth Proportional to 125,838.18, 173,664.18 and 72,126.67

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Solution

The fourth proportional to 125,838.18, 173,664.18 and 72,126.67 is: 99,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,838.18 : 173,664.18 = 72,126.67 : x
  2. Step 2: Convert to fraction form
    125,838.18/173,664.18 = 72,126.67/x
  3. Step 3: Cross multiply
    125,838.18x = 173,664.18 × 72,126.67
  4. Step 4: Simplify right side
    125,838.18x = 12,525,819,001.68
  5. Step 5: Solve for x
    x = 12,525,819,001.68/125,838.18
  6. Step 6: Final answer
    x = 99,539.10

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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.