Home / 102,022.08-153,008.80-42,858.90

Finding the Fourth Proportional to 102,022.08, 153,008.80 and 42,858.90

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Solution

The fourth proportional to 102,022.08, 153,008.80 and 42,858.90 is: 64,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,022.08 : 153,008.80 = 42,858.90 : x
  2. Step 2: Convert to fraction form
    102,022.08/153,008.80 = 42,858.90/x
  3. Step 3: Cross multiply
    102,022.08x = 153,008.80 × 42,858.90
  4. Step 4: Simplify right side
    102,022.08x = 6,557,788,858.32
  5. Step 5: Solve for x
    x = 6,557,788,858.32/102,022.08
  6. Step 6: Final answer
    x = 64,278.13

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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.