Home / 115,331.76-159,130.80-70,008.66

Finding the Fourth Proportional to 115,331.76, 159,130.80 and 70,008.66

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Solution

The fourth proportional to 115,331.76, 159,130.80 and 70,008.66 is: 96,595.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.76 : 159,130.80 = 70,008.66 : x
  2. Step 2: Convert to fraction form
    115,331.76/159,130.80 = 70,008.66/x
  3. Step 3: Cross multiply
    115,331.76x = 159,130.80 × 70,008.66
  4. Step 4: Simplify right side
    115,331.76x = 11,140,534,072.73
  5. Step 5: Solve for x
    x = 11,140,534,072.73/115,331.76
  6. Step 6: Final answer
    x = 96,595.54

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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.