Home / 134,534.07-185,615.10-76,381.29

Finding the Fourth Proportional to 134,534.07, 185,615.10 and 76,381.29

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Solution

The fourth proportional to 134,534.07, 185,615.10 and 76,381.29 is: 105,382.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,534.07 : 185,615.10 = 76,381.29 : x
  2. Step 2: Convert to fraction form
    134,534.07/185,615.10 = 76,381.29/x
  3. Step 3: Cross multiply
    134,534.07x = 185,615.10 × 76,381.29
  4. Step 4: Simplify right side
    134,534.07x = 14,177,520,781.48
  5. Step 5: Solve for x
    x = 14,177,520,781.48/134,534.07
  6. Step 6: Final answer
    x = 105,382.38

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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.