Home / 153,278.48-211,520.38-88,738.76

Finding the Fourth Proportional to 153,278.48, 211,520.38 and 88,738.76

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Solution

The fourth proportional to 153,278.48, 211,520.38 and 88,738.76 is: 122,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,278.48 : 211,520.38 = 88,738.76 : x
  2. Step 2: Convert to fraction form
    153,278.48/211,520.38 = 88,738.76/x
  3. Step 3: Cross multiply
    153,278.48x = 211,520.38 × 88,738.76
  4. Step 4: Simplify right side
    153,278.48x = 18,770,056,235.93
  5. Step 5: Solve for x
    x = 18,770,056,235.93/153,278.48
  6. Step 6: Final answer
    x = 122,457.22

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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.