Home / 137,823.30-190,184.49-77,389.20

Finding the Fourth Proportional to 137,823.30, 190,184.49 and 77,389.20

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Solution

The fourth proportional to 137,823.30, 190,184.49 and 77,389.20 is: 106,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,823.30 : 190,184.49 = 77,389.20 : x
  2. Step 2: Convert to fraction form
    137,823.30/190,184.49 = 77,389.20/x
  3. Step 3: Cross multiply
    137,823.30x = 190,184.49 × 77,389.20
  4. Step 4: Simplify right side
    137,823.30x = 14,718,225,533.51
  5. Step 5: Solve for x
    x = 14,718,225,533.51/137,823.30
  6. Step 6: Final answer
    x = 106,790.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.