Home / 348,749.13-523,128.56-99,431.13

Finding the Fourth Proportional to 348,749.13, 523,128.56 and 99,431.13

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Solution

The fourth proportional to 348,749.13, 523,128.56 and 99,431.13 is: 149,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,749.13 : 523,128.56 = 99,431.13 : x
  2. Step 2: Convert to fraction form
    348,749.13/523,128.56 = 99,431.13/x
  3. Step 3: Cross multiply
    348,749.13x = 523,128.56 × 99,431.13
  4. Step 4: Simplify right side
    348,749.13x = 52,015,263,856.07
  5. Step 5: Solve for x
    x = 52,015,263,856.07/348,749.13
  6. Step 6: Final answer
    x = 149,148.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.