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Finding the Fourth Proportional to 110,877.42, 153,011 and 63,130.80

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Solution

The fourth proportional to 110,877.42, 153,011 and 63,130.80 is: 87,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,877.42 : 153,011 = 63,130.80 : x
  2. Step 2: Convert to fraction form
    110,877.42/153,011 = 63,130.80/x
  3. Step 3: Cross multiply
    110,877.42x = 153,011 × 63,130.80
  4. Step 4: Simplify right side
    110,877.42x = 9,659,706,838.80
  5. Step 5: Solve for x
    x = 9,659,706,838.80/110,877.42
  6. Step 6: Final answer
    x = 87,120.60

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1.5x scale

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.