Home / 102,623.04-153,934.50-74,720.64

Finding the Fourth Proportional to 102,623.04, 153,934.50 and 74,720.64

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Solution

The fourth proportional to 102,623.04, 153,934.50 and 74,720.64 is: 112,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,623.04 : 153,934.50 = 74,720.64 : x
  2. Step 2: Convert to fraction form
    102,623.04/153,934.50 = 74,720.64/x
  3. Step 3: Cross multiply
    102,623.04x = 153,934.50 × 74,720.64
  4. Step 4: Simplify right side
    102,623.04x = 11,502,084,358.08
  5. Step 5: Solve for x
    x = 11,502,084,358.08/102,623.04
  6. Step 6: Final answer
    x = 112,080.92

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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.