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Finding the Fourth Proportional to 145,303.76, 200,514.12 and 88,809.68

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Solution

The fourth proportional to 145,303.76, 200,514.12 and 88,809.68 is: 122,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,303.76 : 200,514.12 = 88,809.68 : x
  2. Step 2: Convert to fraction form
    145,303.76/200,514.12 = 88,809.68/x
  3. Step 3: Cross multiply
    145,303.76x = 200,514.12 × 88,809.68
  4. Step 4: Simplify right side
    145,303.76x = 17,807,594,832.68
  5. Step 5: Solve for x
    x = 17,807,594,832.68/145,303.76
  6. Step 6: Final answer
    x = 122,554.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.