Home / 165,715.10-248,572.65-47,390.30

Finding the Fourth Proportional to 165,715.10, 248,572.65 and 47,390.30

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Solution

The fourth proportional to 165,715.10, 248,572.65 and 47,390.30 is: 71,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,715.10 : 248,572.65 = 47,390.30 : x
  2. Step 2: Convert to fraction form
    165,715.10/248,572.65 = 47,390.30/x
  3. Step 3: Cross multiply
    165,715.10x = 248,572.65 × 47,390.30
  4. Step 4: Simplify right side
    165,715.10x = 11,779,932,455.30
  5. Step 5: Solve for x
    x = 11,779,932,455.30/165,715.10
  6. Step 6: Final answer
    x = 71,085.45

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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.