Home / 137,488.12-189,714.36-77,054.02

Finding the Fourth Proportional to 137,488.12, 189,714.36 and 77,054.02

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Solution

The fourth proportional to 137,488.12, 189,714.36 and 77,054.02 is: 106,323.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,488.12 : 189,714.36 = 77,054.02 : x
  2. Step 2: Convert to fraction form
    137,488.12/189,714.36 = 77,054.02/x
  3. Step 3: Cross multiply
    137,488.12x = 189,714.36 × 77,054.02
  4. Step 4: Simplify right side
    137,488.12x = 14,618,254,089.73
  5. Step 5: Solve for x
    x = 14,618,254,089.73/137,488.12
  6. Step 6: Final answer
    x = 106,323.76

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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.