Home / 145,128.60-217,685.16-45,277.34

Finding the Fourth Proportional to 145,128.60, 217,685.16 and 45,277.34

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Solution

The fourth proportional to 145,128.60, 217,685.16 and 45,277.34 is: 67,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,128.60 : 217,685.16 = 45,277.34 : x
  2. Step 2: Convert to fraction form
    145,128.60/217,685.16 = 45,277.34/x
  3. Step 3: Cross multiply
    145,128.60x = 217,685.16 × 45,277.34
  4. Step 4: Simplify right side
    145,128.60x = 9,856,205,002.27
  5. Step 5: Solve for x
    x = 9,856,205,002.27/145,128.60
  6. Step 6: Final answer
    x = 67,913.60

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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.