Home / 136,888.86-188,904.63-76,460.36

Finding the Fourth Proportional to 136,888.86, 188,904.63 and 76,460.36

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Solution

The fourth proportional to 136,888.86, 188,904.63 and 76,460.36 is: 105,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,888.86 : 188,904.63 = 76,460.36 : x
  2. Step 2: Convert to fraction form
    136,888.86/188,904.63 = 76,460.36/x
  3. Step 3: Cross multiply
    136,888.86x = 188,904.63 × 76,460.36
  4. Step 4: Simplify right side
    136,888.86x = 14,443,716,015.47
  5. Step 5: Solve for x
    x = 14,443,716,015.47/136,888.86
  6. Step 6: Final answer
    x = 105,514.18

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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.