Home / 163,520.53-245,175.24-78,085.17

Finding the Fourth Proportional to 163,520.53, 245,175.24 and 78,085.17

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Solution

The fourth proportional to 163,520.53, 245,175.24 and 78,085.17 is: 117,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,520.53 : 245,175.24 = 78,085.17 : x
  2. Step 2: Convert to fraction form
    163,520.53/245,175.24 = 78,085.17/x
  3. Step 3: Cross multiply
    163,520.53x = 245,175.24 × 78,085.17
  4. Step 4: Simplify right side
    163,520.53x = 19,144,550,295.19
  5. Step 5: Solve for x
    x = 19,144,550,295.19/163,520.53
  6. Step 6: Final answer
    x = 117,077.35

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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.