Home / 145,239.48-217,888.38-66,332.52

Finding the Fourth Proportional to 145,239.48, 217,888.38 and 66,332.52

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Solution

The fourth proportional to 145,239.48, 217,888.38 and 66,332.52 is: 99,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,239.48 : 217,888.38 = 66,332.52 : x
  2. Step 2: Convert to fraction form
    145,239.48/217,888.38 = 66,332.52/x
  3. Step 3: Cross multiply
    145,239.48x = 217,888.38 × 66,332.52
  4. Step 4: Simplify right side
    145,239.48x = 14,453,085,324.12
  5. Step 5: Solve for x
    x = 14,453,085,324.12/145,239.48
  6. Step 6: Final answer
    x = 99,512.10

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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.