Home / 136,437.60-188,284.14-76,010.40

Finding the Fourth Proportional to 136,437.60, 188,284.14 and 76,010.40

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Solution

The fourth proportional to 136,437.60, 188,284.14 and 76,010.40 is: 104,894.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,437.60 : 188,284.14 = 76,010.40 : x
  2. Step 2: Convert to fraction form
    136,437.60/188,284.14 = 76,010.40/x
  3. Step 3: Cross multiply
    136,437.60x = 188,284.14 × 76,010.40
  4. Step 4: Simplify right side
    136,437.60x = 14,311,552,795.06
  5. Step 5: Solve for x
    x = 14,311,552,795.06/136,437.60
  6. Step 6: Final answer
    x = 104,894.49

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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.