Home / 98,917.50-148,370.08-42,718.21

Finding the Fourth Proportional to 98,917.50, 148,370.08 and 42,718.21

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Solution

The fourth proportional to 98,917.50, 148,370.08 and 42,718.21 is: 64,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,917.50 : 148,370.08 = 42,718.21 : x
  2. Step 2: Convert to fraction form
    98,917.50/148,370.08 = 42,718.21/x
  3. Step 3: Cross multiply
    98,917.50x = 148,370.08 × 42,718.21
  4. Step 4: Simplify right side
    98,917.50x = 6,338,104,235.16
  5. Step 5: Solve for x
    x = 6,338,104,235.16/98,917.50
  6. Step 6: Final answer
    x = 64,074.65

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1.5x scale

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.