Home / 98,403.45-147,534.03-38,381.07

Finding the Fourth Proportional to 98,403.45, 147,534.03 and 38,381.07

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Solution

The fourth proportional to 98,403.45, 147,534.03 and 38,381.07 is: 57,543.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,403.45 : 147,534.03 = 38,381.07 : x
  2. Step 2: Convert to fraction form
    98,403.45/147,534.03 = 38,381.07/x
  3. Step 3: Cross multiply
    98,403.45x = 147,534.03 × 38,381.07
  4. Step 4: Simplify right side
    98,403.45x = 5,662,513,932.81
  5. Step 5: Solve for x
    x = 5,662,513,932.81/98,403.45
  6. Step 6: Final answer
    x = 57,543.86

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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.