Home / 140,304.81-193,624.88-76,646.71

Finding the Fourth Proportional to 140,304.81, 193,624.88 and 76,646.71

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Solution

The fourth proportional to 140,304.81, 193,624.88 and 76,646.71 is: 105,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.81 : 193,624.88 = 76,646.71 : x
  2. Step 2: Convert to fraction form
    140,304.81/193,624.88 = 76,646.71/x
  3. Step 3: Cross multiply
    140,304.81x = 193,624.88 × 76,646.71
  4. Step 4: Simplify right side
    140,304.81x = 14,840,709,058.02
  5. Step 5: Solve for x
    x = 14,840,709,058.02/140,304.81
  6. Step 6: Final answer
    x = 105,774.77

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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.