Home / 142,879.55-214,275.57-98,789.63

Finding the Fourth Proportional to 142,879.55, 214,275.57 and 98,789.63

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Solution

The fourth proportional to 142,879.55, 214,275.57 and 98,789.63 is: 148,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,879.55 : 214,275.57 = 98,789.63 : x
  2. Step 2: Convert to fraction form
    142,879.55/214,275.57 = 98,789.63/x
  3. Step 3: Cross multiply
    142,879.55x = 214,275.57 × 98,789.63
  4. Step 4: Simplify right side
    142,879.55x = 21,168,204,278.34
  5. Step 5: Solve for x
    x = 21,168,204,278.34/142,879.55
  6. Step 6: Final answer
    x = 148,154.19

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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.