Home / 170,288.96-235,038.12-98,708.72

Finding the Fourth Proportional to 170,288.96, 235,038.12 and 98,708.72

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Solution

The fourth proportional to 170,288.96, 235,038.12 and 98,708.72 is: 136,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,288.96 : 235,038.12 = 98,708.72 : x
  2. Step 2: Convert to fraction form
    170,288.96/235,038.12 = 98,708.72/x
  3. Step 3: Cross multiply
    170,288.96x = 235,038.12 × 98,708.72
  4. Step 4: Simplify right side
    170,288.96x = 23,200,311,976.41
  5. Step 5: Solve for x
    x = 23,200,311,976.41/170,288.96
  6. Step 6: Final answer
    x = 136,240.85

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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.