Home / 102,021.07-153,007.30-42,857.89

Finding the Fourth Proportional to 102,021.07, 153,007.30 and 42,857.89

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Solution

The fourth proportional to 102,021.07, 153,007.30 and 42,857.89 is: 64,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,021.07 : 153,007.30 = 42,857.89 : x
  2. Step 2: Convert to fraction form
    102,021.07/153,007.30 = 42,857.89/x
  3. Step 3: Cross multiply
    102,021.07x = 153,007.30 × 42,857.89
  4. Step 4: Simplify right side
    102,021.07x = 6,557,570,032.60
  5. Step 5: Solve for x
    x = 6,557,570,032.60/102,021.07
  6. Step 6: Final answer
    x = 64,276.62

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1.5x scale

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.