Home / 118,421.42-163,530.66-76,053.75

Finding the Fourth Proportional to 118,421.42, 163,530.66 and 76,053.75

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Solution

The fourth proportional to 118,421.42, 163,530.66 and 76,053.75 is: 105,024.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,421.42 : 163,530.66 = 76,053.75 : x
  2. Step 2: Convert to fraction form
    118,421.42/163,530.66 = 76,053.75/x
  3. Step 3: Cross multiply
    118,421.42x = 163,530.66 × 76,053.75
  4. Step 4: Simplify right side
    118,421.42x = 12,437,119,932.98
  5. Step 5: Solve for x
    x = 12,437,119,932.98/118,421.42
  6. Step 6: Final answer
    x = 105,024.25

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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.