Home / 125,948.68-173,802.90-81,236.68

Finding the Fourth Proportional to 125,948.68, 173,802.90 and 81,236.68

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Solution

The fourth proportional to 125,948.68, 173,802.90 and 81,236.68 is: 112,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,948.68 : 173,802.90 = 81,236.68 : x
  2. Step 2: Convert to fraction form
    125,948.68/173,802.90 = 81,236.68/x
  3. Step 3: Cross multiply
    125,948.68x = 173,802.90 × 81,236.68
  4. Step 4: Simplify right side
    125,948.68x = 14,119,170,570.37
  5. Step 5: Solve for x
    x = 14,119,170,570.37/125,948.68
  6. Step 6: Final answer
    x = 112,102.57

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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.