Home / 120,348.12-166,085.59-66,633.13

Finding the Fourth Proportional to 120,348.12, 166,085.59 and 66,633.13

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Solution

The fourth proportional to 120,348.12, 166,085.59 and 66,633.13 is: 91,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.12 : 166,085.59 = 66,633.13 : x
  2. Step 2: Convert to fraction form
    120,348.12/166,085.59 = 66,633.13/x
  3. Step 3: Cross multiply
    120,348.12x = 166,085.59 × 66,633.13
  4. Step 4: Simplify right side
    120,348.12x = 11,066,803,031.26
  5. Step 5: Solve for x
    x = 11,066,803,031.26/120,348.12
  6. Step 6: Final answer
    x = 91,956.60

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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.