Home / 136,613.06-188,527.02-76,187.60

Finding the Fourth Proportional to 136,613.06, 188,527.02 and 76,187.60

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Solution

The fourth proportional to 136,613.06, 188,527.02 and 76,187.60 is: 105,139.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,613.06 : 188,527.02 = 76,187.60 : x
  2. Step 2: Convert to fraction form
    136,613.06/188,527.02 = 76,187.60/x
  3. Step 3: Cross multiply
    136,613.06x = 188,527.02 × 76,187.60
  4. Step 4: Simplify right side
    136,613.06x = 14,363,421,188.95
  5. Step 5: Solve for x
    x = 14,363,421,188.95/136,613.06
  6. Step 6: Final answer
    x = 105,139.44

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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.