Home / 144,889.72-217,386-64,921.40

Finding the Fourth Proportional to 144,889.72, 217,386 and 64,921.40

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Solution

The fourth proportional to 144,889.72, 217,386 and 64,921.40 is: 97,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.72 : 217,386 = 64,921.40 : x
  2. Step 2: Convert to fraction form
    144,889.72/217,386 = 64,921.40/x
  3. Step 3: Cross multiply
    144,889.72x = 217,386 × 64,921.40
  4. Step 4: Simplify right side
    144,889.72x = 14,113,003,460.40
  5. Step 5: Solve for x
    x = 14,113,003,460.40/144,889.72
  6. Step 6: Final answer
    x = 97,405.14

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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.