Home / 145,112.04-217,730.70-75,040.56

Finding the Fourth Proportional to 145,112.04, 217,730.70 and 75,040.56

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Solution

The fourth proportional to 145,112.04, 217,730.70 and 75,040.56 is: 112,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,112.04 : 217,730.70 = 75,040.56 : x
  2. Step 2: Convert to fraction form
    145,112.04/217,730.70 = 75,040.56/x
  3. Step 3: Cross multiply
    145,112.04x = 217,730.70 × 75,040.56
  4. Step 4: Simplify right side
    145,112.04x = 16,338,633,657.19
  5. Step 5: Solve for x
    x = 16,338,633,657.19/145,112.04
  6. Step 6: Final answer
    x = 112,593.23

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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.