Home / 134,708.18-185,909.77-77,355.03

Finding the Fourth Proportional to 134,708.18, 185,909.77 and 77,355.03

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Solution

The fourth proportional to 134,708.18, 185,909.77 and 77,355.03 is: 106,757.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,708.18 : 185,909.77 = 77,355.03 : x
  2. Step 2: Convert to fraction form
    134,708.18/185,909.77 = 77,355.03/x
  3. Step 3: Cross multiply
    134,708.18x = 185,909.77 × 77,355.03
  4. Step 4: Simplify right side
    134,708.18x = 14,381,054,712.71
  5. Step 5: Solve for x
    x = 14,381,054,712.71/134,708.18
  6. Step 6: Final answer
    x = 106,757.10

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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.