Home / 159,688.90-239,533.35-75,421.36

Finding the Fourth Proportional to 159,688.90, 239,533.35 and 75,421.36

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Solution

The fourth proportional to 159,688.90, 239,533.35 and 75,421.36 is: 113,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,688.90 : 239,533.35 = 75,421.36 : x
  2. Step 2: Convert to fraction form
    159,688.90/239,533.35 = 75,421.36/x
  3. Step 3: Cross multiply
    159,688.90x = 239,533.35 × 75,421.36
  4. Step 4: Simplify right side
    159,688.90x = 18,065,931,022.36
  5. Step 5: Solve for x
    x = 18,065,931,022.36/159,688.90
  6. Step 6: Final answer
    x = 113,132.04

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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.