Home / 142,719.53-213,788.63-67,612.01

Finding the Fourth Proportional to 142,719.53, 213,788.63 and 67,612.01

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Solution

The fourth proportional to 142,719.53, 213,788.63 and 67,612.01 is: 101,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,719.53 : 213,788.63 = 67,612.01 : x
  2. Step 2: Convert to fraction form
    142,719.53/213,788.63 = 67,612.01/x
  3. Step 3: Cross multiply
    142,719.53x = 213,788.63 × 67,612.01
  4. Step 4: Simplify right side
    142,719.53x = 14,454,678,089.53
  5. Step 5: Solve for x
    x = 14,454,678,089.53/142,719.53
  6. Step 6: Final answer
    x = 101,280.31

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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.