Home / 148,457.39-204,884.16-81,402.35

Finding the Fourth Proportional to 148,457.39, 204,884.16 and 81,402.35

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Solution

The fourth proportional to 148,457.39, 204,884.16 and 81,402.35 is: 112,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,457.39 : 204,884.16 = 81,402.35 : x
  2. Step 2: Convert to fraction form
    148,457.39/204,884.16 = 81,402.35/x
  3. Step 3: Cross multiply
    148,457.39x = 204,884.16 × 81,402.35
  4. Step 4: Simplify right side
    148,457.39x = 16,678,052,101.78
  5. Step 5: Solve for x
    x = 16,678,052,101.78/148,457.39
  6. Step 6: Final answer
    x = 112,342.35

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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.