Home / 139,036.98-191,870.28-75,374.64

Finding the Fourth Proportional to 139,036.98, 191,870.28 and 75,374.64

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Solution

The fourth proportional to 139,036.98, 191,870.28 and 75,374.64 is: 104,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,036.98 : 191,870.28 = 75,374.64 : x
  2. Step 2: Convert to fraction form
    139,036.98/191,870.28 = 75,374.64/x
  3. Step 3: Cross multiply
    139,036.98x = 191,870.28 × 75,374.64
  4. Step 4: Simplify right side
    139,036.98x = 14,462,153,281.70
  5. Step 5: Solve for x
    x = 14,462,153,281.70/139,036.98
  6. Step 6: Final answer
    x = 104,016.60

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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.