Home / 102,178.83-153,266.45-45,979.16

Finding the Fourth Proportional to 102,178.83, 153,266.45 and 45,979.16

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Solution

The fourth proportional to 102,178.83, 153,266.45 and 45,979.16 is: 68,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,178.83 : 153,266.45 = 45,979.16 : x
  2. Step 2: Convert to fraction form
    102,178.83/153,266.45 = 45,979.16/x
  3. Step 3: Cross multiply
    102,178.83x = 153,266.45 × 45,979.16
  4. Step 4: Simplify right side
    102,178.83x = 7,047,062,742.13
  5. Step 5: Solve for x
    x = 7,047,062,742.13/102,178.83
  6. Step 6: Final answer
    x = 68,967.94

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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.