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Finding the Fourth Proportional to 158,548.68, 218,866.95 and 110,988.72

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Solution

The fourth proportional to 158,548.68, 218,866.95 and 110,988.72 is: 153,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,548.68 : 218,866.95 = 110,988.72 : x
  2. Step 2: Convert to fraction form
    158,548.68/218,866.95 = 110,988.72/x
  3. Step 3: Cross multiply
    158,548.68x = 218,866.95 × 110,988.72
  4. Step 4: Simplify right side
    158,548.68x = 24,291,762,630.80
  5. Step 5: Solve for x
    x = 24,291,762,630.80/158,548.68
  6. Step 6: Final answer
    x = 153,213.28

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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.