Home / 125,688.30-173,440.60-71,971.93

Finding the Fourth Proportional to 125,688.30, 173,440.60 and 71,971.93

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Solution

The fourth proportional to 125,688.30, 173,440.60 and 71,971.93 is: 99,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,688.30 : 173,440.60 = 71,971.93 : x
  2. Step 2: Convert to fraction form
    125,688.30/173,440.60 = 71,971.93/x
  3. Step 3: Cross multiply
    125,688.30x = 173,440.60 × 71,971.93
  4. Step 4: Simplify right side
    125,688.30x = 12,482,854,722.36
  5. Step 5: Solve for x
    x = 12,482,854,722.36/125,688.30
  6. Step 6: Final answer
    x = 99,315.96

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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.