Home / 198,430.59-273,820.05-112,364.85

Finding the Fourth Proportional to 198,430.59, 273,820.05 and 112,364.85

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Solution

The fourth proportional to 198,430.59, 273,820.05 and 112,364.85 is: 155,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,430.59 : 273,820.05 = 112,364.85 : x
  2. Step 2: Convert to fraction form
    198,430.59/273,820.05 = 112,364.85/x
  3. Step 3: Cross multiply
    198,430.59x = 273,820.05 × 112,364.85
  4. Step 4: Simplify right side
    198,430.59x = 30,767,748,845.24
  5. Step 5: Solve for x
    x = 30,767,748,845.24/198,430.59
  6. Step 6: Final answer
    x = 155,055.47

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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.