Home / 117,237.40-161,860.98-90,328.84

Finding the Fourth Proportional to 117,237.40, 161,860.98 and 90,328.84

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Solution

The fourth proportional to 117,237.40, 161,860.98 and 90,328.84 is: 124,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,237.40 : 161,860.98 = 90,328.84 : x
  2. Step 2: Convert to fraction form
    117,237.40/161,860.98 = 90,328.84/x
  3. Step 3: Cross multiply
    117,237.40x = 161,860.98 × 90,328.84
  4. Step 4: Simplify right side
    117,237.40x = 14,620,714,564.66
  5. Step 5: Solve for x
    x = 14,620,714,564.66/117,237.40
  6. Step 6: Final answer
    x = 124,710.33

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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.