Home / 163,543.36-245,409.56-68,766

Finding the Fourth Proportional to 163,543.36, 245,409.56 and 68,766

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Solution

The fourth proportional to 163,543.36, 245,409.56 and 68,766 is: 103,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,543.36 : 245,409.56 = 68,766 : x
  2. Step 2: Convert to fraction form
    163,543.36/245,409.56 = 68,766/x
  3. Step 3: Cross multiply
    163,543.36x = 245,409.56 × 68,766
  4. Step 4: Simplify right side
    163,543.36x = 16,875,833,802.96
  5. Step 5: Solve for x
    x = 16,875,833,802.96/163,543.36
  6. Step 6: Final answer
    x = 103,188.74

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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.