Home / 125,355.85-172,988.28-70,900.81

Finding the Fourth Proportional to 125,355.85, 172,988.28 and 70,900.81

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Solution

The fourth proportional to 125,355.85, 172,988.28 and 70,900.81 is: 97,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,355.85 : 172,988.28 = 70,900.81 : x
  2. Step 2: Convert to fraction form
    125,355.85/172,988.28 = 70,900.81/x
  3. Step 3: Cross multiply
    125,355.85x = 172,988.28 × 70,900.81
  4. Step 4: Simplify right side
    125,355.85x = 12,265,008,740.04
  5. Step 5: Solve for x
    x = 12,265,008,740.04/125,355.85
  6. Step 6: Final answer
    x = 97,841.54

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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.