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Finding the Fourth Proportional to 145,756.52, 218,659.66 and 66,877.48

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Solution

The fourth proportional to 145,756.52, 218,659.66 and 66,877.48 is: 100,327.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,756.52 : 218,659.66 = 66,877.48 : x
  2. Step 2: Convert to fraction form
    145,756.52/218,659.66 = 66,877.48/x
  3. Step 3: Cross multiply
    145,756.52x = 218,659.66 × 66,877.48
  4. Step 4: Simplify right side
    145,756.52x = 14,623,407,038.46
  5. Step 5: Solve for x
    x = 14,623,407,038.46/145,756.52
  6. Step 6: Final answer
    x = 100,327.64

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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.