Home / 134,381.13-185,447.37-77,019.21

Finding the Fourth Proportional to 134,381.13, 185,447.37 and 77,019.21

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Solution

The fourth proportional to 134,381.13, 185,447.37 and 77,019.21 is: 106,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,381.13 : 185,447.37 = 77,019.21 : x
  2. Step 2: Convert to fraction form
    134,381.13/185,447.37 = 77,019.21/x
  3. Step 3: Cross multiply
    134,381.13x = 185,447.37 × 77,019.21
  4. Step 4: Simplify right side
    134,381.13x = 14,283,009,933.98
  5. Step 5: Solve for x
    x = 14,283,009,933.98/134,381.13
  6. Step 6: Final answer
    x = 106,287.32

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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.