Home / 136,810.23-205,341.50-69,389.58

Finding the Fourth Proportional to 136,810.23, 205,341.50 and 69,389.58

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Solution

The fourth proportional to 136,810.23, 205,341.50 and 69,389.58 is: 104,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,810.23 : 205,341.50 = 69,389.58 : x
  2. Step 2: Convert to fraction form
    136,810.23/205,341.50 = 69,389.58/x
  3. Step 3: Cross multiply
    136,810.23x = 205,341.50 × 69,389.58
  4. Step 4: Simplify right side
    136,810.23x = 14,248,560,441.57
  5. Step 5: Solve for x
    x = 14,248,560,441.57/136,810.23
  6. Step 6: Final answer
    x = 104,148.36

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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.