Home / 134,973.54-186,264.97-77,641.34

Finding the Fourth Proportional to 134,973.54, 186,264.97 and 77,641.34

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Solution

The fourth proportional to 134,973.54, 186,264.97 and 77,641.34 is: 107,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,973.54 : 186,264.97 = 77,641.34 : x
  2. Step 2: Convert to fraction form
    134,973.54/186,264.97 = 77,641.34/x
  3. Step 3: Cross multiply
    134,973.54x = 186,264.97 × 77,641.34
  4. Step 4: Simplify right side
    134,973.54x = 14,461,860,740.43
  5. Step 5: Solve for x
    x = 14,461,860,740.43/134,973.54
  6. Step 6: Final answer
    x = 107,145.89

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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.