Home / 98,157.18-147,215.52-28,020.90

Finding the Fourth Proportional to 98,157.18, 147,215.52 and 28,020.90

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Solution

The fourth proportional to 98,157.18, 147,215.52 and 28,020.90 is: 42,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,157.18 : 147,215.52 = 28,020.90 : x
  2. Step 2: Convert to fraction form
    98,157.18/147,215.52 = 28,020.90/x
  3. Step 3: Cross multiply
    98,157.18x = 147,215.52 × 28,020.90
  4. Step 4: Simplify right side
    98,157.18x = 4,125,111,364.37
  5. Step 5: Solve for x
    x = 4,125,111,364.37/98,157.18
  6. Step 6: Final answer
    x = 42,025.57

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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.