Home / 142,994.51-197,332.35-78,464.16

Finding the Fourth Proportional to 142,994.51, 197,332.35 and 78,464.16

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Solution

The fourth proportional to 142,994.51, 197,332.35 and 78,464.16 is: 108,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,994.51 : 197,332.35 = 78,464.16 : x
  2. Step 2: Convert to fraction form
    142,994.51/197,332.35 = 78,464.16/x
  3. Step 3: Cross multiply
    142,994.51x = 197,332.35 × 78,464.16
  4. Step 4: Simplify right side
    142,994.51x = 15,483,517,083.58
  5. Step 5: Solve for x
    x = 15,483,517,083.58/142,994.51
  6. Step 6: Final answer
    x = 108,280.50

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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.