Home / 137,948.80-190,355.16-77,509.84

Finding the Fourth Proportional to 137,948.80, 190,355.16 and 77,509.84

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Solution

The fourth proportional to 137,948.80, 190,355.16 and 77,509.84 is: 106,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,948.80 : 190,355.16 = 77,509.84 : x
  2. Step 2: Convert to fraction form
    137,948.80/190,355.16 = 77,509.84/x
  3. Step 3: Cross multiply
    137,948.80x = 190,355.16 × 77,509.84
  4. Step 4: Simplify right side
    137,948.80x = 14,754,397,994.77
  5. Step 5: Solve for x
    x = 14,754,397,994.77/137,948.80
  6. Step 6: Final answer
    x = 106,955.61

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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.