Home / 98,015.47-135,337.53-75,318.70

Finding the Fourth Proportional to 98,015.47, 135,337.53 and 75,318.70

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Solution

The fourth proportional to 98,015.47, 135,337.53 and 75,318.70 is: 103,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,015.47 : 135,337.53 = 75,318.70 : x
  2. Step 2: Convert to fraction form
    98,015.47/135,337.53 = 75,318.70/x
  3. Step 3: Cross multiply
    98,015.47x = 135,337.53 × 75,318.70
  4. Step 4: Simplify right side
    98,015.47x = 10,193,446,820.81
  5. Step 5: Solve for x
    x = 10,193,446,820.81/98,015.47
  6. Step 6: Final answer
    x = 103,998.35

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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.