Home / 134,820.90-186,051.47-74,392.74

Finding the Fourth Proportional to 134,820.90, 186,051.47 and 74,392.74

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Solution

The fourth proportional to 134,820.90, 186,051.47 and 74,392.74 is: 102,661.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,820.90 : 186,051.47 = 74,392.74 : x
  2. Step 2: Convert to fraction form
    134,820.90/186,051.47 = 74,392.74/x
  3. Step 3: Cross multiply
    134,820.90x = 186,051.47 × 74,392.74
  4. Step 4: Simplify right side
    134,820.90x = 13,840,878,262.36
  5. Step 5: Solve for x
    x = 13,840,878,262.36/134,820.90
  6. Step 6: Final answer
    x = 102,661.22

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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.