Home / 136,539.47-188,430.86-76,110.55

Finding the Fourth Proportional to 136,539.47, 188,430.86 and 76,110.55

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Solution

The fourth proportional to 136,539.47, 188,430.86 and 76,110.55 is: 105,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,539.47 : 188,430.86 = 76,110.55 : x
  2. Step 2: Convert to fraction form
    136,539.47/188,430.86 = 76,110.55/x
  3. Step 3: Cross multiply
    136,539.47x = 188,430.86 × 76,110.55
  4. Step 4: Simplify right side
    136,539.47x = 14,341,576,391.57
  5. Step 5: Solve for x
    x = 14,341,576,391.57/136,539.47
  6. Step 6: Final answer
    x = 105,036.12

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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.