Home / 146,457.40-202,109.70-81,925.80

Finding the Fourth Proportional to 146,457.40, 202,109.70 and 81,925.80

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Solution

The fourth proportional to 146,457.40, 202,109.70 and 81,925.80 is: 113,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,457.40 : 202,109.70 = 81,925.80 : x
  2. Step 2: Convert to fraction form
    146,457.40/202,109.70 = 81,925.80/x
  3. Step 3: Cross multiply
    146,457.40x = 202,109.70 × 81,925.80
  4. Step 4: Simplify right side
    146,457.40x = 16,557,998,860.26
  5. Step 5: Solve for x
    x = 16,557,998,860.26/146,457.40
  6. Step 6: Final answer
    x = 113,056.76

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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.