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Finding the Fourth Proportional to 118,011.21, 176,978.53 and 39,104.25

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Solution

The fourth proportional to 118,011.21, 176,978.53 and 39,104.25 is: 58,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,011.21 : 176,978.53 = 39,104.25 : x
  2. Step 2: Convert to fraction form
    118,011.21/176,978.53 = 39,104.25/x
  3. Step 3: Cross multiply
    118,011.21x = 176,978.53 × 39,104.25
  4. Step 4: Simplify right side
    118,011.21x = 6,920,612,681.75
  5. Step 5: Solve for x
    x = 6,920,612,681.75/118,011.21
  6. Step 6: Final answer
    x = 58,643.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.