Home / 145,532.38-218,330.49-130,835.74

Finding the Fourth Proportional to 145,532.38, 218,330.49 and 130,835.74

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Solution

The fourth proportional to 145,532.38, 218,330.49 and 130,835.74 is: 196,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,532.38 : 218,330.49 = 130,835.74 : x
  2. Step 2: Convert to fraction form
    145,532.38/218,330.49 = 130,835.74/x
  3. Step 3: Cross multiply
    145,532.38x = 218,330.49 × 130,835.74
  4. Step 4: Simplify right side
    145,532.38x = 28,565,431,223.71
  5. Step 5: Solve for x
    x = 28,565,431,223.71/145,532.38
  6. Step 6: Final answer
    x = 196,282.31

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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.