Home / 163,834.47-245,840-69,130.29

Finding the Fourth Proportional to 163,834.47, 245,840 and 69,130.29

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Solution

The fourth proportional to 163,834.47, 245,840 and 69,130.29 is: 103,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,834.47 : 245,840 = 69,130.29 : x
  2. Step 2: Convert to fraction form
    163,834.47/245,840 = 69,130.29/x
  3. Step 3: Cross multiply
    163,834.47x = 245,840 × 69,130.29
  4. Step 4: Simplify right side
    163,834.47x = 16,994,990,493.60
  5. Step 5: Solve for x
    x = 16,994,990,493.60/163,834.47
  6. Step 6: Final answer
    x = 103,732.69

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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.