Home / 165,030.55-247,630.23-78,574.26

Finding the Fourth Proportional to 165,030.55, 247,630.23 and 78,574.26

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Solution

The fourth proportional to 165,030.55, 247,630.23 and 78,574.26 is: 117,901.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,030.55 : 247,630.23 = 78,574.26 : x
  2. Step 2: Convert to fraction form
    165,030.55/247,630.23 = 78,574.26/x
  3. Step 3: Cross multiply
    165,030.55x = 247,630.23 × 78,574.26
  4. Step 4: Simplify right side
    165,030.55x = 19,457,363,004.49
  5. Step 5: Solve for x
    x = 19,457,363,004.49/165,030.55
  6. Step 6: Final answer
    x = 117,901.58

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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.