Home / 145,160.79-217,803.56-75,089.31

Finding the Fourth Proportional to 145,160.79, 217,803.56 and 75,089.31

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Solution

The fourth proportional to 145,160.79, 217,803.56 and 75,089.31 is: 112,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,160.79 : 217,803.56 = 75,089.31 : x
  2. Step 2: Convert to fraction form
    145,160.79/217,803.56 = 75,089.31/x
  3. Step 3: Cross multiply
    145,160.79x = 217,803.56 × 75,089.31
  4. Step 4: Simplify right side
    145,160.79x = 16,354,718,660.50
  5. Step 5: Solve for x
    x = 16,354,718,660.50/145,160.79
  6. Step 6: Final answer
    x = 112,666.23

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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.